You can't change the default settings so that the IPTC titles and captions are used as soon as JuiceboxBuilder-Pro is opened but you can save the settings in a preset file.

Select 'Images -> Titles -> Use IPTC Title' and 'Images -> Captions -> Use IPTC Caption' from the drop-down menu at the top.
Now go to 'Presets -> Save Preset...'.

As long as you save the preset file in the default location, you will be able to select it quickly from the 'Load Preset' list on the 'Customize Tab' (or via 'Presets -> Load Preset...'). (Maybe not perfect but it halves the number of clicks required to load IPTC titles and captions: 2 clicks now instead of 4.)

Please see the JuiceboxBuilder-Pro User Guide for more information on Presets.

Thanks for the info. Maybe updating the OS next week will somehow help.
I really don't know what could be causing your problem and I'm running out of ideas for things to try.

Perhaps running through the procedure in this forum post will help (there is a JuiceboxBuilder-Pro entry in the ELS folder).
Just substitute 'XYZApplication' with 'JuiceboxBuilder-Pro' in the instructions. Also, please make a backup of any files and folders that you delete in case you need to reinstate them at a later date.
https://forums.adobe.com/message/3488779#3488779

That's great! Thank you for letting me know.

You need the URL that's already in the browser's address bar when you're viewing the page with the 'I want this!' button.
That's the URL that you can try copying and pasting into a different browser.
Please check your email. I have sent you a message where you can forward me the email you were sent with details of the upgrade. I'll take a look at it for you. At the very least, I should be able to send you the URL which you can paste to try in different browsers.
Out of interest, what browser are you currently using that the 'I want this!' button seems to be ineffective in?

You should be able to enter the email address that you used to purchase Juicebox-Pro into the box and then click the 'I want this!' button to get to the download link. (This is a security measure to prevent unauthorized downloads but all it should take to bypass it is for you to enter your email address and click the button.)

If you find that the 'I want this!' button is inactive, try refreshing the web page (hit the F5 key) and try again.
If this still doesn't work, try copying and pasting the page's URL (right-click the 'Download' button in your email and select 'Copy Link Location') into a different browser (Chrome, Firefox, Internet Explorer, Opera, Safari).
Hopefully using a different browser will work.

You're welcome.
I hope it won't take you too long to adjust your web pages.

For more information on the new Juicebox v1.4.4.2 release, please see this blog entry.
The only change in the v1.4.4.2 release (from v1.4.4.1) is to JuiceboxBuilder-Pro (the desktop application) which now includes the required meta viewport tag in the gallery's 'index.html' file.
The core Juicebox files (in the 'jbcore' folder) remain the same as in the v1.4.4.1 release (v1.4.4.1 for the 'juicebox.js' file and v1.4.4 for the 'theme.css' file).

@JudoPhoto

Thank you for the suggestion.
If you like, you could display the "<- SWIPE ->" text as the Gallery Title only on Android or iOS devices only (and not in desktop browsers) by using the JavaScript navigator.userAgent to detect the device and then set the galleryTitle in the gallery's embedding code as appropriate.
For example:

<!--START JUICEBOX EMBED-->
<script src="jbcore/juicebox.js"></script>
<script>
new juicebox({
    containerId: 'juicebox-container',
    galleryTitle: /Android|iPad|iPhone|iPod/i.test(navigator.userAgent) ? '<- SWIPE ->' : ''
});
</script>
<div id="juicebox-container"></div>
<!--END JUICEBOX EMBED-->

Yes. That is correct. The meta viewport tag is required for the overall gallery size to be correct.

The meta viewport tag is in the 'full.html' file but it has always been there. The 'full.html' file is used only when the gallery is expanded (from the Splash Page or the Expand Button) in a new page.
The meta viewport tag must now also be included in the HTML document that the gallery is embedded into. Unfortunately, this can no longer be done from within the 'jbcore' folder. The 'juicebox.js' file adds the meta viewport tag dynamically into the web page but the problem is that iOS 9 no longer respects this, hence it now needs to be done manually.

Replacing the 'jbcore' folders will not work. The core Juicebox files remain unchanged from the v1.4.4.1 release to v1.4.4.2.
You could certainly rebuild your galleries (with JuiceboxBuilder-Pro or the jAlbum plugin, both of which have been updated) but all that is required is to insert the meta viewport tag into the <head> section of the gallery web pages.

You can point each gallery towards a different XML file using the configUrl option in the embedding code.
Alternatively, you can point towards separate gallery folders using the baseUrl option.
Please see the Embed Options for short descriptions of these two configuration options.

I would recommend using the baseUrl method as it allows you to keep each gallery as a self-contained folder and you would upload the complete gallery folders (not just the contents) to your web server. This should help to keep things organized on your server.
Instructions for using the baseUrl method of embedding can be found here.

Perhaps this Adobe support page will help.

Troubleshoot unexpected behavior | User account-specific | Adobe software | Mac OS
https://helpx.adobe.com/x-productkb/glo … count.html

Maybe following the suggestions will help with any account-specific problems for Adobe AIR.

You say that "but only Lite is not working" on our own web site but also that "I have tested on my side therefore Honk Kong . But not working." so you seem to be having problems with both Lite and Pro galleries. Please let me know if this is correct.
I can't think of any reason why you should be able to view our Pro demo galleries but not our Lite ones.

Try viewing the galleries over a wi-fi connection to see if this makes a difference.
Also, try using Chrome as well as the stock browser to see if the problem happens in both browsers or just one.

Hopefully viewing the galleries over wi-fi and checking in two different browsers will help to find the cause of the problem.