Having Trouble Saving File multiple times

Hello all. I’m using Toon Boom on Mac OS X and have found that I can save my project file once, but when I try to save it a second or third time the program begins to save and then stalls halfway through the process. Has anyone else had this problem and found a solution? If someone could help me out or point me in the right direction I would really appreciate it. Thanks.

Hello,

I 've had this several times. What I do is to duplicate the files before working on it, so I am sure I won’t have the problem.