Report saving error and PBIX file automatically deleted from file folder

v-qiuyu-msft Vicky_SongThank you for your reply. This has happened to me on the same report file multiple times. I have other files that seem to be okay. 

Regarding the file path/folder where the PBIX was housed, I am able to open other excel files in that file path, and able to paste other documents, excel, pictures into the folder, but cannot open or paste the one PBIX report in question.

What I end up doing each time is to download the last PBIX backup report from the server and saving it to the file path. For some reason it will let me save it to the path if its from app.powerbi.com, but not if I'm copying it from my desktop. Then I rename it back to the old name and spend time re-creating my work. I went through the same modifications and steps as I did before this issue and it allowed me to save and publish my work using the file I downloaded from the server. In the meantime I will have to save and publish every couple of minutes in order to not lose my work.