Cannot assign Artemis IV or V to Improved missiles on dropships

[mavikfelna]

Environment

What version of MekLab does your issue apply to? Note whether it is the stand alone MekLab 0.47.16
What operating system are you using? Windows
What java version are you using? 1.8.0_271
(Delete the above lines)

Description

With Improved LRMs or SRMs added to a dropship or warship design it does not allow any form of Artemis FCS to be added to the LRM or SRM bay. It works as expected with standard or clan missiles