MacBook sync problem Onedrive/excel

I can't solve a recurring problem. I have a Mac computer where I work in Excel and share this document with several others. Some work in Windows and some in Mac like me. I am the only one with the synchronization problems. For example, I can't see when someone has edited a document, which results in when I think a document is finished, it is sent to a customer that may contain incorrect information. I work in Teams and Onedrive. If I open an Excel document, AutoSave is never checked. When I click in it, it jumps back and AutoSave is grayed out. I am having major problems with the synchronization and need help