LarryD,
AH! We’ve actually had reports of IvyDE locking up the workbench on startup in the past, all the way back to MyEclipse 6.0 users, you can see the thread here:
https://www.myeclipseide.com/PNphpBB2-viewtopic-t-18528-start-0.html
The user went on to reproduce the behavior in plain Eclipse a few times and confirmed as soon as he removed IvyDE, the lockups stopped. Is there anyone on the team experiencing the lockups frequently enough, and using IvyDE less-often enough to remove it for a few days and see if they stop?
Sorry for the added legwork.