Just a quick addition which I forgot to put in my post above...

That in itself is not a problem. The Gallery Folder text field is not editable. It is simply a visual confirmation of the folder which has been selected via the 'Browse...' button.

On Android, the only browsers that are officially supported are the stock browser and Mobile Chrome.
If the gallery is not your own and you are using a different browser to view it, then it may be unlikely that there is anything you can do to get it to work.

Having said that, if you can provide me with some additional information, I'll dig a little deeper and hopefully at least be able to determine why the problem is occurring. (Maybe the browser does not support external XML files, or maybe there's a syntax problem with the gallery's XML file and the browser is less tolerant towards errors than Mobile Chrome or maybe the gallery uses an older version of Juicebox with a bug it in causing the problem.)

(1) Please provide a link to the gallery in question so that I can examine it myself.

(2) Does the gallery display OK in Mobile Chrome on your device?

(3) Can you view any/all galleries on our demo galleries page in the Samsung Internet app?

(4) What is the version number of the Samsung Internet app that you are using (so that I can search the internet for any known issues)?

(5) Please check the Samsung Internet app's security settings to see if there are any options which might restrict the loading of external XML files (such as a Juicebox configuration file).

With a little more information, we should hopefully be able to get to the bottom of this issue.
Thanks!

In a comment from a Harman GitHub Issues topic a couple of hours ago, A J W Frost (Harman staff) released a link to a web page containing Windows AIR runtime installers for v33.1.1.385 (the previous version) and v33.1.1.476 (a pre-release version).

You can now download v33.1.1.385 directly from Harman (without relying on software mirror sites).
I have experienced problems with the pre-release version (v33.1.1.476) so I would recommend using the last stable version (v33.1.1.385) for the time being.

Links:

Issues topic: https://github.com/airsdk/Adobe-Runtime … -833331811
AIR v33.1.1.385 temporary download page: https://transfer.harman.com/message/BYb … oGVLJ9CpSN
Harman AIR runtime download page (still offering v33.1.1.444): https://airsdk.harman.com/runtime

I'm glad that you've got the linkURL problem sorted out. Thank you for letting me know.

I'm not sure I understand the problem you are having with image ordering in JuiceboxBuilder-Pro.
It sounds like you're happy with the workaround that you are using (the Lightroom plugin) and that's great.
Just in case it helps, though, it is possible to reorder images on JuiceboxBuilder-Pro's 'Images' tab without the need to rename any images.
You can sort image by File Name and by File Date (and also both in reverse) via the 'Images -> Sort' menu from the drop-down menu at the top.
Additionally, you can drag and drop thumbnails on the 'Images' tab into a custom order. (Ctrl+Clicking a selection of thumbnails and Shift+Clicking a block of images also works.)

With regard to embedding a gallery into an existing web page alongside other content, a gallery created by the Lightroom plugin is essentially exactly the same as a gallery created by JuiceboxBuilder-Pro.
There may be slight formatting differences (whitespace) in the output files but the gallery structure and methods of embedding are identical to one another.

You can follow the regular Embedding in a HTML Page instructions documented here for Lightroom plugin-generated galleries (just like you have done for JuiceboxBuilder-Pro galleries).
The Lightroom plugin does not present the embedding code (like JuiceboxBuilder-Pro does on the 'Publish' tab) but you can grab it from the gallery's 'index.html' file.
Just open the gallery's 'index.html' file in a plain text editor and copy everything between the <!--START JUICEBOX EMBED--> and <!--END JUICEBOX EMBED--> tags. That's the embedding code that the instructions (here) refer to in Step #3.

Alternatively, you could use the baseUrl method of embedding documented here.
This method allows you to keep the gallery as a self-contained entity in its own folder (rather than copying the contents of the gallery folder into the folder containing the page with the gallery's embedding code), but you'll need to tweak the embedding code slightly. You'll need to:
(1) Make sure that the path to the 'juicebox.js' file (in the <script> tag at the top of the embedding code) is correct.
(2) Add a baseUrl entry to the embedding code to point towards the gallery folder.
(3) Adjust the image paths in the SEO content.
Check out the instructions for an example.

Incidentally, I meant to ask, where exactly did you find the extra semicolon? As you say, it's probably not a problem but it sounds like it does not need to be there. If you could let me know where it is, I'll let the developers know. Thank you.

Please see this forum post for an explanation and workaround.
I hope it helps.

Unfortunately, there seems to be a problem with the latest version of AIR (v33.1.1.444).
I reported the problem to Harman earlier today and they have confirmed that there is a problem with the current Windows installer.
For reference, here is my report to Harman: https://github.com/Gamua/Adobe-Runtime- … ssions/788

Hopefully they will be able to fix the problem soon but, in the meantime, a suitable workaround is as follows:

(1) Uninstall Adobe AIR. If you cannot uninstall Adobe AIR via the Control Panel, then delete the following folder manually:

• C:\Program Files (x86)\Common Files\Adobe AIR

(2) Download and install the previous version of AIR (v33.1.1.385).
Harman do not make previous versions available for download but you can still download it from here: https://www.filecroco.com/download-adobe-air/.
The file from filecroco.com is the official Harman release of AIR v33.1.1.385 (genuine, clean and safe to use).
I found the SHA256 hash for the 'AdobeAIR.exe' v33.1.1.385 file on a Harman web page archived by archive.org (search for "https://airsdk.harman.com/runtime" and select the page dated 26 January 2021) and it matches the SHA256 hash of the file from filecroco.com.

Sorry for the inconvenience but this should work fine until Harman releases a new AIR runtime for Windows.

I saw the same error message when trying to uninstall AIR via the Control Panel after using the AIR v33.1.1.444 installer (to either upgrade or install afresh). I, too, have full administrative rights on my own PC.
The solution for me was to manually delete the C:\Program Files (x86)\Common Files\Adobe AIR folder and then run the AIR v33.1.1.385 installer.
Even if you have already tried this, please try again. It definitely worked for me (and I've now done it many times whilst testing).

@arachnid

I hear you (and agree 100%)!
I'd love to see a new version of Juicebox released soon and I, too, think that it is no longer necessary to support older versions of Internet Explorer.
Unfortunately, I am not the author of Juicebox (or JuiceboxBuilder) and I am not involved in any executive decisions (and re-writing JuicboxBuilder for a different platform (i.e. not AIR) would be a huge undertaking).

AIR seems to be a little unstable at the moment, having recently transitioned from Adobe to Harman. There are several known issues on the AIR Runtimes download page which Harman are working through (and, by the looks of things, a few unknown issues, too).
Once the Harman version of AIR settles down and becomes more stable, I feel confident that there will be fewer issues with JuiecboxBuilder.

Incidentally, for anyone else reading this thread and wondering about the use of Flash, AIR may use Flash technology internally but Juicebox itself (i.e. the galleries that you upload to your websites) does not use or rely on Flash in any way, shape or form.

I'm sorry to hear that you are having trouble with JuiceboxBuilder.
I hope my notes below help.

The first thing that I can think of which might be causing your problem is a background update to an anti-virus program.
If you have any anti-virus programs installed (e.g. Avast or AVG), then please try temporarily disabling them to see if this makes a difference. If any such program is interfering with JuiceboxBuilder's functionality, then disabling them (at least temporarily, for testing purposes) should help.
If you find that this resolves your problem, then please let me know what anti-virus software you are using and the version numbers of both the program itself and your current virus database and I will contact the company on your behalf and file a false positive report so that JuiceboxBuilder's reputation can hopefully be cleared in their next update.
(Please disable any security software at your own risk and be sure to disconnect from the internet first.)

If this suggestion is not applicable to you (if you do not use any third-party anti-virus software) or makes no difference, then I would recommend completely uninstalling and then reinstalling Adobe AIR.
As the problem happens to both JuiceboxBuilder-Lite and JuiceboxBuilder-Pro, it is unlikely that a similar problem has happened to both applications simultaneously.
It seems more likely that there is an underlying problem with Adobe AIR (the platform on which the JuiceboxBuilder runs) on your system.

There have been a few reports over the last couple of days regarding the latest version of AIR (v33.1.1.444) causing problems (the inability to install JuiceboxBuidler rather than the symptoms you report) so I would recommend using the previous stable version (v33.1.1.385) instead.
Unfortunately, Harman do not make older versions available for download on their website but v33.1.1.385 is still available here: https://www.filecroco.com/download-adobe-air/
I have confirmed that the file is genuine and clean. (I found the SHA256 hash for the file on an archived Harman web page and it matches that of the file from filecroco.)

If, for any reason, you cannot uninstall Adobe AIR (which might be the case if you have already attempted to update to v33.1.1.444), then please delete the following folder before installing v33.1.1.385.

• C:\Program Files (x86)\Common Files\Adobe AIR

I hope this helps.

On further investigation, it looks like there might be a problem with the latest AIR runtime released by Harman a couple of days ago (v3.1.1.444).
I ran the installer (as an update to an pre-existing version of AIR) when it was released and the update seemed to be successful, although running the installer again suggests that the update did not work (if offers to update again, rather than suggesting that I already have the most recent version).
Also, after running the update, I can no longer uninstall AIR via the Control Panel.
Scraping AIR out of my system manually and installing v3.1.1.444 afresh, I can now reproduce the "installer file is damaged" problem.
Here's a solution:

(1) Uninstall Adobe AIR. If you cannot uninstall Adobe AIR via the Control Panel, delete the following folder manually:

• C:\Program Files (x86)\Common Files\Adobe AIR

(2) Download and install the previous version of AIR (v33.1.1.385). I found it here (https://www.filecroco.com/download-adobe-air/) (The file is reported as being 100% clean on VirusTotal but as the source of the file is not the original vendor, please install at your own risk.)

I hope this helps.

I'm glad to hear that you've settled on the easy solution!
Thank you for letting me know. I'll mark this thread as [SOLVED].

Having seen your gallery, I think the problem is that you set autoPlayOnLoad="TRUE".
In Small Screen Mode, thumbnails and main images are displayed on separate pages and setting autoPlayOnLoad="TRUE" forces Juicebox to skip the initial thumbnail page and start displaying images.
You'll either need to set autoPlayOnLoad="FALSE" or set screenMode="LARGE" (in JuiceboxBuilder-Pro's 'Customize -> General' section) to force the gallery to be displayed in Large Screen Mode on all devices and in all browsers so that you see the desktop layout on your iPhone.

Unfortunately, there are no separate autoPlayOnLoad configuration options for Small vs Large Screen Modes. There is just one autoPlayOnLoad configuration option which is shared across both screen modes.

If you really want to initiate AutoPlay in Large Screen Mode only, then you can do so with help from the Juicebox-Pro API.
With the API, you can run custom JavaScript as soon as the gallery is loaded (via onInitComplete), check which screen mode is being used (via getScreenMode) and toggle AutoPlay (via toggleAutoPlay).
Here's some sample embedding code which might help:

<script src="jbcore/juicebox.js"></script>
<script>
    var jb = new juicebox({
        containerId: 'juicebox-container',
        galleryWidth: '100%',
        galleryHeight: '100%',
        backgroundColor: 'rgba(34,34,34,1)'
    });
    jb.onInitComplete = function() {
        var screenMode = jb.getScreenMode();
        if (screenMode === 'LARGE') {
            jb.toggleAutoPlay();
        }
    };
</script>
<div id="juicebox-container"></div>

If you want to initially display thumbnails in Small Screen Mode but want to initiate AutoPlay as soon as a thumbnail is selected, then that is much more complicated. You'll need to toggleAutoPlay when a  new image is displayed (via onImageChange) but only if it's the first image to be displayed from a thumbnail page. You'll need a couple of tracking variables: one to determine whether the image being displayed is the first image to be displayed from a thumbnail page and another to keep track of whether or not AutoPlay is currently on.
The following code is not fully tested but it might point you in the right direction:

<script src="jbcore/juicebox.js"></script>
<script>
    var autoPlay = false;
    var tracker = false;
    var jb = new juicebox({
        containerId: 'juicebox-container',
        galleryWidth: '100%',
        galleryHeight: '100%',
        backgroundColor: 'rgba(34,34,34,1)'
    });
    jb.onInitComplete = function() {
        var screenMode = jb.getScreenMode();
        if (screenMode === 'LARGE') {
            jb.toggleAutoPlay();
        }
        if (screenMode === 'SMALL') {
            jb.onImageChange = function(e) {
                if (tracker === false) {
                    jb.toggleAutoPlay();
                    autoPlay = !autoPlay;
                    tracker = true;
                }
            };
            jb.onShowThumbs = function(showing) {
                if (showing) {
                    if (autoPlay) {
                        jb.toggleAutoPlay();
                        autoPlay = !autoPlay;
                    }
                    tracker = false;
                }
            };
        }
    };
</script>
<div id="juicebox-container"></div>

I hope this helps.