You say "not for problem reports", but there has been at least 5 bug reports about this since 1.3, and you've only fixed it partially;

Can you please fix Aux slots on ships equipping items through auto-designs that are outside their size_restriction and/or class_restriction?



This is never visible with vanilla Stellaris, and probably not with any mods released so far. But it's the same problem that was with the combat computers and others, it just isn't fixed for the Aux slot.

I haven't tested other slots, but I know required_component slots are not affected (any more).