Mounting S3 shows files, but no data

I previously mounted an S3 and everything worked. Now trying to access the same bucket from the same notepad I see all the files in the S3 bucket with the timestamp: 31 Dec 1970 11:59

There are no bytes and unable to access any of the files even though I can see the filenames. Tried restarting, re-mounting, etc. but it’s the same.

Anyone else seeing this recently?