Get in vehicle option doesn't prompt AI to get in it

[6komodo6]

Describe the bug:
Selecting the AI and pressing 4 to bring up the list of available vehicles to get in sometimes doesn't work. Tried with all available seats. This was on Tanoa with the NATO Huron cargo heli

Steps to reproduce:
Have a cargo heli land in Tanoa, then command AI in group to mount using the 4 key. It sometimes works others not. Commanding them with vanilla commands worked

Additional context:
https://streamable.com/n5g33k
https://streamable.com/uhcsal