I also have the same issue, https://pastebin.com/WXbiXY4c is the log file and I'm joining a vanilla server. forge 1.16.1 version 32.0.106 worked fine on the server before we updated it to 1.16.2. I've tried version 33.0.2 and 33.0.3 and both of them do the same thing when joining a server.