Qubes-Whonix doesn’t have any source code interacting with that mechanism. Needs to be reported on Qubes issues. As per What to post in this Qubes-Whonix forum and what not..
I am not sure what you want to do, but try doing this for Debian templates first.
This is sufficient:
What Qubes dom0 is saying in the graphical user interface (GUI) could be a bug. Often you can trust the command line interface (CLI) tool output more. GUI is mostly just showing what it can gather from CLI. Hence more vulnerable to such kind of bugs.
Nowhere that complicated.