When I try to open my workspace properties on Powerbuilder 12.6 it just freezes. I tried to create a new Workspace without source control, but that doesn't work either. I tried to add
[JavaVM]
CreateJavaVM=0
to the pb.ini and put ReopenWorkspace=0 without success. I even deleted the layout => default folder in my registry (after exporting it), which was mentioned in a simmilar post about this problem.
I found a solution for my problem. The problem was, that the Properties-Window opened off-screen and I couldn't see it. I pressed Alt+Tab and then Alt+Space and chose relocate to move my window with the Arrow-Keys.