After upgrading to 2021.1, my Pycharm always fails to upload files to a remote server. Re-open it can always solve the problem temporally. However, it fails again after 2-3 hours and I have to re-open it again, which is annoying. I upload my log here and the id is : 2021_04_22_Wbh3CN4yMTEFzgGz (file: idea.log). Please help me to resolve this problem.