Fatshark will be able to help you on Monday since it’s currently the weekend but if you want them to be able to help you then they’ll need more information to work with, such as your console.log and/or your launcher.log. I recommend uploading those files, if you don’t know how then here’s some instructions:
Upload Console Log:
Press the Windows key + R
Enter %appdata% within the search input and select ‘OK’
Navigate to AppData\Roaming\Fatshark\Darktide\console_logs
Locate the console log that corresponds with the session in which the issue occurred, by looking at the timestamps in the log names
Upload here
Upload darktide_launcher.log:
Press the Windows key + R
Enter %appdata% within the search input and select ‘OK’
Navigate to AppData\Roaming\Fatshark\Darktide
Locate the darktide_launcher.log in this directory
Upload here
Also pinging @FatsharkJulia , this probably needs tech support