And that third ship? The one with no shield showing? I know the game has issues sometimes showing active impulse effect, blast shields and etc if they were activated before you go into TM.
Do they have an active blast shield?
#Enemy ship not taking damage
proper talon
tired prairie
This issue seems similar to this other one. #1207095328264683530 message
It does seem less clear whether the two ships pictured here would be effected by the ship stacking though.
proper talon
What shield do they have, bond isn't a shield.
Oh... Well ok then. Well it's not blast shield protecting them then.
Maybe that ally shield you mentioned did it? Did that shield lose health? I didn't see it activated in the video but that doesn't mean much. Otherwise it might be what incinerator said, their ship not actually being where you see it but offset visually as the occupied the same space as they travel.