[1.1 / Royalty] Can't Destroy Mech Capsule & Defoliator

[daplunus]

I got a quest called Scourge Pods, where I had to fight a group of mechanoids that were dropped into my colony. I was able to defeat them, but I Can't Destroy or diassemble these Mech Capsule & Defoliator. I tried targeting them, but my colonists just started to move next to it. The green circle just indicates they are moving towards it. I have tried with ranged and melee weapons.

This is my save file:
https://drive.google.com/open?id=1J2nOylYQECXvs6K1Htr3CtE7axz8oJ76