Seems I've faced with a serious problem.. When I creating a new bounding box application crashes.
How to reproduce:
1. New project (for the purity of the experiment);
2. Select "root" bone. New...->Bounding Box;
3. Enter any name in message box and press Ok;
5. Then select any other element in skeleton object graph (e.g. parent bone or slot);
4. Crash here
See log in attachments.
