Saw that the original post was the error when they were trying to create a constraint in an assembly. I have not seen that one BUT many, many, many times I will be creating an IPN, do the Tweak command, pick a direction, select some parts then try to drag them and I'll get :
Serious error - Illegal attempt to create identified child transaction inside an unidentified transaction. OK
and in the background at the same time I get another small window (usually covered by the first error window) stating :
Vault - <some part number> is currently locked. Do you want to continue editing anyway? Your changes will not get saved to Vault. YES - YES TO ALL - NO - NO TO ALL
If I click OK on the error window and NO on the locked window, the parts snap back to where they were and I cannot drag them. If I click OK on the error and then YES (or YES TO ALL if it's more then one part) then the parts snap back to where they were, I try the drag again and nothing moves, then I try it a third time and they drag and stay.
And not sure WHY Inventor thinks a part is somehow changing when you're tweaking it in an IPN. That's just (supposed to be) a view tool that I don't believe is actually supposed to touch any parts.
This is a pretty repeatable situation. The one I pulled up to get this example, the part causing the error was just created in the last couple days and about an hour ago it was checked in to Vault and changed to Released (and updated in my Workspace). This is a very common occurance and really puts a dent in productivity.
Just for reference were running INV 2012 64-bit, Build 219, Release 2012 SP2, Date Fri 04/27/2012 under Windows 7 Enterprise SP1. We're also running Collaboratoin so not sure how to look up what Version of Vault (in case that matters).
