In the new RitR rules it states:
When moving an obstacle "at its final position, cannot overlap ships, squadrons or other obstacles, or tokens in the play area."
But there are a number of Objectives that involve mandatory moving of obstacles. The most prescriptive being 'Doomed Station':
"each player chooses 1 obstacle... and moves it to within distance 1-2 of its current location toward the gravity rift".
But what if you can't do that due to a squadron or ship being in the way? does that mean the obstacle doesn't move or that you have to move it somewhere even if it's not towards the gravity rift?