Weapons don't fire in structural parts.

[Breikermann]

Describe the bug
I don't know if it's a bug but i haven't found useful info anywhere, i installed bdarmory plus through ckan and weapons work with plane parts but whenever i put a weapon on a structural panel or strut for example it doesn't fire. I did some "testing" like making a vehicle composed by a panel, seat, batteries, manager, ammo, and m230 chaingun, and it didn't work, until i enabled infinite ammo in the options menu, then i went to a boat that i made which also didn't work and changed the strut under the turret with a fuel tank and worked perfectly, also put it in other parts of the boat like a different fuel tank and a cargo and worked.

To Reproduce
Don't know how to reproduce it other than trying to make a vehicle with structural parts.

Expected behaviour
I expected the weapons to fire without this problem.

Logs
KSP.log

Screenshots
Just doesn't fire

[BillNyeTheIE]

Ammunition obeys crossfeed rules. Turn crossfeed on for whatever you've got the weapon attached to.

[Breikermann]

Ammunition obeys crossfeed rules. Turn crossfeed on for whatever you've got the weapon attached to.

Thanks for the reply, but how do i do that? is there a way to not have to do it everytime?