Hi Craig,
I can't offer too much at this point with the problem of why this may be happening with that particular Workspace, but I wonder if you changed your settings to not open a Workspace upon starting the IDE if that will help you to continue trouble-shooting by switching Workspaces, per Chris' suggestion. Assuming the IDE is not so unstable that you can't access the menus, then click on Tools, System Options then go to the Workspaces tab and uncheck Reopen workspace on startup.

If it is so unstable such that you can't even access the menus to change this option before it crashes, then navigate to where your PB.INI file is located. This may depend upon where/ how you installed PowerBuilder but on my machine, for example, it's located in "C:\Users\Mark\AppData\Local\Appeon\PowerBuilder 19.0". Then locate the line "ReopenWorkspace=1" and change the 1 to a 0, then try and start PowerBuilder again. You could also leave the setting as 1 but change the line in the PB.INI file that points to the last open Workspace ("LastWorkspace=........") and change it to a known working Workspace.
From there hopefully you would be able to open another Workspace, or maybe the previous working version of the Workspace in question, and continue trouble-shooting. However, if you still have a problem with the IDE crashing without a Workspace even open, or a known working Workspace open, then I would consider re-installing PowerBuilder.
PS...before you try and open a known working Workspace I would recommend making backups first.
HTH...regards,
Mark
Thank you for the suggestion. I followed the same procedure as you described, but still no luck. Everything seems to regenerate successfully, but the problem still persists.
I will continue to pursue this.
Thank you again for your reply. It is much appreciated.
Open a differnt Workspace.
Add the problem target/app.
Do a Full Build. If the rebuild fails the IDE willshow you the problem object(s). Assuming the Rebuild succeeds, then:
Open each PBL in the app and regen each object one at a time. Yes, it's a PITA. And it's time consuming.
That's how I found and fixed my last hosed app.
Olan