Hi! I faced with some strange issue. Any synchronization in settings didn't work properly, especially Gmail and Google photos. There was a few weeks I'm trying to figure out what's wrong. And finally I found a reason: magisk systemless module. I raised an issue in magisks github and received answer from topjohnwu https://github.com/topjohnwu/Magisk/issues/3696#issuecomment-760873564
Any little chance to fix it in the firmware?This is caused by an F2FS driver issue that unfortunately Magisk is unable to fix. The only way around it is to use a custom kernel with the required fix. For more technical details, please check the reply by @freak07: #3171 (comment)