Yes I have Invisible Sheep & Goats also. Oddly enough though It turns out to be the "CBA" mod for me. If that is not running they are fine.

Tested with placed module in editor & Zeus in game. Same results either way.

Also similar & possibly related is AI switching between Launcher & Rifle, back & forth, back & forth.

This is still an issue (at least for me it is) I find disembarking from a boat with no rifle you become stuck. Can reproduce in virtual Reality map with one Nato Diver & one Empty boat. Drop rifle swim out embark, then disembark.