Hi.
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It's interesting to hear that you are having trouble opening one particular gallery.

Two things spring to mind...

(1) There could be a corrupt image in the gallery that JuiceboxBuilder-Pro is choking on.
Even something as seeming innocuous as badly formatted metadata (which might not be enough to cause a visible problem when opening the image in a regular imaging program), could potentially cause JuiceboxBuilder-Pro to fail when adding the image to a gallery.
If you try to recreate your gallery from scratch and add your images in small batches, you should be able to find out if there is a rogue image.

(2) It could be a memory allocation problem.
If you try to add too many images to JuiceboxBuilder-Pro at once (maybe when opening a very large gallery), then Adobe AIR may not be able to allocate enough memory for the task at hand (causing JuiceboxBuilder-Pro to crash or hang). Even if your computer has plenty of free RAM, I seem to remember that Adobe AIR applications are limited to around 1GB of memory allocation.
The workaround for this is to add your images to your gallery in smaller batches. Trial and error will help to determine a safe number of images per batch (it will depend on your own images).
Having said that, I've seen this happen when adding images to a gallery but not when opening an existing gallery. Also, this usually only happens when trying to add hundreds of images at a time (and not just 70). I thought I should mention it, though.

To help with troubleshooting, you might like to send me your 70-image gallery to see if I can open it on my own computer.
I have a Windows 11 PC (admittedly nothing like your own setup) but I'll try to open the gallery using AIR v33.1.1.744 and JuiceboxBuilder-Pro v1.5.1.2 and let you know if it works for me (or if I find anything amiss). If you'd like me to try this, just zip your gallery, upload the zip file somewhere and send a link to me at steven@juicebox.net. Thank you.

I'm glad that worked for you. Thank you for letting me know.

That's great! Thank you for posting back to let me know.

If you continually have to delete the .tempGallery folder, then double-check that you are not saving or trying to load galleries from a location being synced to an online file-sharing service (e.g. Box, Dropbox, Google Drive, iCloud, OneDrive).

If you have already gone through the list of suggestions in this forum thread (which I'm sure you have by now), then I'm not sure what else to suggest.
I don't know what is causing your installation to fail to open your gallery and just bounce back to the Start panel. I've never actually seen this happen myself.

The only troubleshooting tip that I can think of is for you to zip your gallery and send it to me so that I can try to open the gallery myself and see what happens. If you don't want to post it publicly here in the forum, you can send it to me at steven@juicebox.net. If the zip file is too large for an email attachment, upload the zip file somewhere (maybe your website or a file sharing service) and email me a link.

Maybe there's a problem with the gallery's configuration file. If you open the gallery's 'config.xml' file directly in a browser and there's a problem with the file's XML syntax, the browser should let you know what and where the problem is.

Maybe your gallery sets the captions or titles to use IPTC data and there's a problem with the embedded data in one of your images that is causing JuiceboxBuilder-Pro to fail.

Unfortunately, without being able to see the problem for myself, troubleshooting is tricky. Having your gallery to inspect is the best chance I've got of being able to replicate your problem.

The problem may not be with the gallery itself but it's something we ought to check.
Unfortunately, other than all the possibilities in the forum thread I linked to above, I'm not sure what else to suggest.

[Issue resolved, See here for details.]

I'm not familiar with Photo Mechanic or its labelling conventions but, as far as I can recall, when setting 'IPTC Title' for the image titles, JuiceboxBuilder-Pro uses what Adobe Lightroom calls IPTC Document Title and, when setting 'IPTC Caption' for the image captions, JuiceboxBuilder-Pro uses what Adobe Lightroom calls IPTC Description.
Maybe this helps to clarify things a little (at least for Adobe Lightroom users).
I'm sorry I do not know what Photo Mechanic's own labels are for the equivalents of Adobe Lightroom's IPTC Document Title and IPTC Description.

I still don't know why the files would be hidden in the first place but I'm glad you're able to unhide them and use the gallery.
Thank you for letting me know.

I'd really need to see the gallery you're trying to open in order to determine the cause of the problem.
I expect there's a problem with the gallery's files or structure as I don't think there should be a problem otherwise.

Try opening the gallery's 'config.xml' file directly in a browser. If there is a problem with the XML syntax, the browser should let you know what the problem is at at what line the problem occurs.

Manually adding images (as you have done) will not keep their original captions unless the captions are embedded within the images themselves as IPTC data and you select 'Images -> Titles -> IPTC Title' or 'Images -> Captions -> IPTC Caption' from the drop-down menu at the top.

Could you maybe zip one of the galleries that you are trying to open, upload the zip file somewhere (e.g. your own website or a file sharing service such as Dropbox or Google Drive) and send me a link (either here in the forum or via steven@juicebox.net)?
I'll try to open the gallery myself (on a Windows PC, I don't have a Mac) and at least let you know if I see any problem with the gallery.

Yes, galleries created on a Windows machine should be able to be opened by JuiceboxBuilder-Pro on a Mac. The gallery files should be the same no matter whether they are created on Windows or Mac.

Tips:

(1) Make sure you use AIR v33.1.1.744 (and not the very latest version of AIR). See here for details.

(2) If you have Apple Silicon (M1/M2/M3/M4), then you'll need to run JuiceboxBuilder-Pro using Rosetta.

(3) Make sure that the gallery you are trying to open in JuiceboxBuilder-Pro uses the standard gallery structure (i.e. no baseUrl) and that the gallery's configuration file is named 'config.xml'. Instructions for opening galleries can be found here.

That could be the problem. JuiceboxBuilder-Pro requires AIR v33.1.1.744 (available at the foot of the AIR download page).

Harman removed support for WebKit (the embedded browser within AIR used for JuiceboxBuilder-Pro's live gallery preview on the Customize panel) after v33.1.1.744 so JuiceboxBuilder-Pro requires v33.1.1.744 for the live preview. (Please see this forum post for further information.)

I don't know if this will resolve your problem but it's worth a shot. Try uninstalling AIR v51.1 and install AIR v33.1.1.744 instead. If you don't find an uninstaller in the '/Applications/Utilities' folder, just launch the '/Applications/Adobe AIR Installer' application. Launching this without arguments will put it into 'uninstaller' mode.

If this does not help, then here are a few things that you can do to try to figure out the root of the problem.

(1) Try opening the gallery's 'config.xml' file directly in a browser. If there is a problem with the XML syntax, the browser should let you know the problem and the line at which the problem occurs.

(2) Check to see if any of your image filenames contain special or accented characters. This may prevent them from being opened by JuiecboxBuilder-Pro. If you find any, it would be safer to stick to alpha-numeric characters for filenames.

(3) Try reducing your gallery into chunks of smaller images (by removing image entries from the 'config.xml' file) to see if there is a corrupt image which is preventing the gallery from being opened.

If the problem persists, then maybe you could zip your gallery and send me a link (steven@juicebox.net) so that I can try to open the gallery in JuiceboxBuilder-Pro on my own computer (Windows 11 PC).
Unfortunately, I do not have access to a Mac running Sequoia so the platforms are not the same but maybe I can find a problem with it that is preventing the gallery from being opened.
Thank you.

Please see this link for details: https://www.juicebox.net/support/embedd … y-behavior