Hosting vanilla server with offline mode, then use whitelist add command to add a whitelist. The whitelist.json file show that the UUID is online mode's UUID not the offline mode's.
That cause can't joining the server using whitelist.
MC-228368
Offline mode server whitelist problem
Resolved
Duplicate
1
Thank you for your report!
We're tracking this issue in MC-50386, so this ticket is being resolved and linked as a duplicate.
That ticket has already been resolved as working as intended, which means this is not considered a bug and won't be fixed. Please do not leave a comment on the linked ticket.
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