Sync often incorrectly deletes files when OneDrive is synced with multiple PCs
I sync my OneDrive with multiple devices. Recently, I updated the ID3v2 tags in my MP3 files in the \Music folder, and I had to resync ~70GB of music from my main PC to OneDrive. While this was happening, I disabled OneDrive on all the other devices. Once the sync was complete from the main device, I copied the updated files directly to all the other local devices that sync with OneDrive. (because it would have been stupid to have OneDrive on those PCs re-download 70GB for each device)
After that copy, when I re-enabled OneDrive on those devices, it began deleting all of the updated files from those devices even though they are byte-identical to the files that are on OneDrive.
Your sync algorithm is flawed for multi-device scenarios. Please fix it.
similar problem here - but didnt even do anything like locally copying - still deleted files (about 30k files...)