Canvas can't override Field not found

Hello Community members
I have a Problem with my Grafana Dashboard, more Precisely with my Canvas inside the Dashboard.
Some infos about the Dashboard:
I’m using Zabbix as backend and Grafana as frontend.
The Canvas works in combination with a variable, wich holds al wanted hosts, so i can give a repeat command for the Canvas and get my created Canvas for every server in the variable.
I habe querys from A to E, so 5 querys, in that canvas
A: Is the Agent reachable
B: Storage of C:
C: Storage of D:
D: Storage of I:
E: uninstalled windows updates
Some server have only C:, some have C:\ and D:, some have all three.

I wanted to create a variable managed canvas that shows different stuff depending on what storage is found an other options.

My Problem ist as you can see in the picture above, that everything i can get is, “Field not found” for every query that does not has current data for the specified host.
I actually cant even see a table for the missing data or pick the query as an option, as you can see here.
image
There should be 5 querys as an option.
Also the picked query is marked as not found and will disappear if something else gets picked.

The Value mapping already has a rule for missing data but it just gets ignored.
image

How can i override the “Field not found” entry?

Thanks in advance for your answers