i have the following problem (no evidence of it, just observation):
committing my changes to the unicase server sometimes "destroys" my changes, i.e. they are lost. happened with a comment and three action items. 

might be related to: "caused by: org.eclipse.emf.transaction.rollbackexception: file fragment "c:\users\c\.unicase.internal\ps-_othdcplsed6z1yayymzxog\project\50.upf" already exists - projectspace corrupted." i already deleted and downloaded the project again, last time 144.upf was the reason for the corruption.