Uneqipable parts?

My fc mate and I just made new parts for our airship and we can’t equip them for some reason. Any idea why? We have a rank 50 ship and made the Viltgance class parts. I’m under the impression we can equip all of them to one ship which is fine but we can’t even swap out the parts. Please help.

It is possible that your FC may have limited the ability to swap parts for certain ranks. If this is the case, you'll have to give the parts to a member who does have the permissions to change them.

We figured it out but thanks!