Saving Problems

Hi,

recently i got follow problem. Yesterday I work on PowerBI Desktop and changed some measures etc. and save it. Therefore i press the disk at the top left corner an i got the little window with "We are working on it". 
Today i open my report and my changes aren't safed. I have this problem every 2 weeks. I already checked that after the saving the upload into our workcloud is fully completed...
Anyone got similiar problems?