Out of the box, Test throws exception

[KoliadaES-Release]

VS 2022
Paints a rectangle -> throws exception;

Whereas I can prolly figure out this, experience tells me if a project doesn't load out the box, anything between a day and a week can be sucked out trying to figure if it is even worth it.

[KoliadaES-Release]

Presumably a result of this build error: