Fixed an issue where files modified and then renamed on the server while Synology Drive Client is disconnected will not be synced to the local computer once the application reconnects.
Fixed an issue where sync tasks with On-demand Sync mode might cause the application to shut down unexpectedly.
Fixed an issue where files renamed and then modified on the server while Synology Drive Client is disconnected cannot be opened properly if the files have enabled On-demand Sync.
From https://www.synology.com/en-global/releaseNote/SynologyDriveClient
Version: 3.0.1-12674 (2021-08-05) Fixed Issues