Steven:

Thank you for your replies. Yes, I had intended to add small batches of images as I recreate my gallery and see if the rebuild can be accomplished.

I have zipped the gallery in question. I will send you a link via e-mail. Look for a message from Gerald Fields with a subject line of Gallery that crashes JuiceboxBuilder-Pro.

Thank you for taking your time to help with this issue. I don't use galleries as much as I had in the past but would like to keep that option as long as possible.

Today I uninstalled Adobe Air and JuiceboxBuilder-Pro. I click on the application(s) in the Applications folder then select See Package Contents. Generally there will be one folder called contents. I delete that folder then delete the application. I did this for Adobe Air and JuiceboxBuilder-Pro. Note for Mac users: Go to Users folder and find yours. Inside there is a Documents folder. In there you will find a JuiceboxBuilder-Pro folder. Delete that folder as it remains after deleting Air and Builder-Pro.

Reinstalled Air 33.1.1.744 as specified. Installed Builder-Pro 1.5.1. Program now opens as it should. Opened a couple small existing galleries OK. However,, when I tried to open my largest gallery, I had the spinning circle that indicated the gallery was loading but then it quit as did the program...no more opening the galleries I had previously opened and could not create a new gallery.

Went through the uninstall - reinstall process again and all works as before but I will not try opening the gallery that crashed the program. Have no idea why program crashed; if there is a log I should be looking at or a .plist that may give a clue I would like to examine it. Gallery is large, nearly 70 images, but it had opened before after a fairly long delay. Other galleries that opened contained around 40 images.

I could be a unique problem as my Trashcan Mac 6,1 (late 2013) is running Mac OS 15.3.2 via OpenCore legacy patcher and I have run into memory allocation problems with other programs, notably the web browser Vivaldi which is based on Chrome. I do have an 8-core processor and 64gb of ram.

For now I will try to recreate my large gallery from scratch and see how many images I can load until the program crashes again. Should be interesting.

The config.xml files for all the galleries I tried opened fine in both Safari (18.3.1) and Dreamweaver 2021 (21.4) so I don't think file corruption is the problem. Likewise, the index.html files open fine in both programs.

Similar problem on a Mac 6,1 using 15.3.2 operating system. The last Mac OS update, from 15.3.1 to 15.3.2 might have changed something. Open JuiceBoxBuilder-Pro, get opening screen, will not open an existing gallery or let me create a new one. Was working a few days ago before the latest OS update.

Have tried all the tips, turned off iCloud Drive, removed JuiceboXBuilder-Pro, installed Adobe Air update, downloaded most recent version of program (1.5.1) and reinstalled everything.

Was able to open one gallery just fine and thought problem was fixed. Went to open another gallery and same problem...won't open or create a gallery.

Went to Activity Monitor application with program running and found files in /private/var folder and /Users/my name/Library  and tried deleting those files. (Can send a specific list if you like.)

No change. Have tried so many things now I can't remember all, but did remove a .plist and a JuiceboxBuilder-Pro folder from my user folder which I later restored from a backup.

Any ideas of what to try next would be appreciated.

Thanks for the note. Problem was resolved after upgrading to Mac 15.2 this morning. installed the OpenCore root patches during the update. (OpenCore gives you this option.) Re-opened JBPro. it took a while, but gallery finally opened. Did not change version of AIR, but will keep that in mind if I have future problems.

Thank you for the tips!

Can mark this problem closed.

Complicated. Upgraded my MacPro 6,1 to Sequoia (15.1.1) using OpenCore legacy patcher. Installed latest version of Air, installer version 51.1. Pro will open most of my galleries but freezes on largest one. Have looked at error log but am not adept at reading the codes reported, can't see anything obvious. Maybe a timing out error. Opening Galleries on local Mac, not on web. Galleries are on an external Thunderbolt hard drive. Any ideas?