FileCloud recently rolled out patch release, which includes fixes for the following issues:

• In S3 Network Folders in FileCloud Drive, files were not listed correctly.
• Some files uploaded to Network Folders disappeared.
• Read-only Sync did not work properly.
• When the same-site cookie attribute was set, an internal warning caused an immediate logout.
• After upgrade to 21.1, some sites crashed.
• In some cases, encryption/decryption failed.

More details here!