Delete web model: model is not handled

I did regular update from TeamServer and got some 3 strange empty elements which claims to be User Stories over mouse-over, when I try to delete those:

Seems like some bug.

I deleted whole local project files and reloaded project from TeamWork server, this resolved definitely the speed of commit a bit, its faster.

Regarding this reported bug, I was able to delete one of these 3 items, but 2 other remains… cannot delete from model.

Would you please send me your log file for checking? You can export it from the Help > About dialog and send it to for diagnosis. Thanks and look forward to hearing from you.

Best regards,
Rain Wong