Yes, I had this same issue with timestamp on Amethyst for NostrMedia.com and had to set an acceptable time deviation rule. As for the other errors, mine is both Blossom and NIP-96, but afaik most folks aren't having issues uploading, if you also wanted another sample to test nostr:npub1gcxzte5zlkncx26j68ez60fzkvtkm9e0vrwdcvsjakxf9mu9qewqlfnj5z