Could you tell me your Crowdin username? I'll try and recommend you as one as I proofread Manx, I also have the same problem as i haven't approved enough strings yet myself
Reporting in https://bugs.mojang.com/projects/MCL/issues/ will get this more attention as it's for the Launcher and not the game itself. Have you tried reinstalling dungeons?
Could you tell me your Crowdin username? I'll try and recommend you as one as I proofread Manx, I also have the same problem as i haven't approved enough strings yet myself