Thu Oct 27, 2022 6:52 am by MrOtto
I contacted Serviio about this problem. They said to fix it for version 2.3. 2.3 is out for Windows, so probably not long now for QTS.
Edit: actually it is released for QNAP, the file in the url says 2.3, but the description on the download page still says 2.2.1
Release notes: "enable installation for Qnap QTS above 5.0.0; ticket #1182"