Major and monir revision problem in 3dexperience

Hello,

I have been receiving this error message after the recent update of 3d experience platform (Hot fix 0.7). I cannot create a minor revision (A.1 to A.2). I can only revise it when I release the part and update to the next revision of B.1. Any suggestions on how to fix this issue? I was able to perform minor revision before but now I cannot anymore. Any help is highly appreciated. Thanks.

Aditya