Didn’t build a single Colossus, just Probes, Zealots and Carriers. Still got the Achievement “I’ve Fallen and I can’t Shoot Up”. Maybe it bugs out, when the Number of Colossus is zero?
There’s a bug where anything created from warp-converted structures doesn’t cause the achievement to fail.
Ah yeah, i think that was the reason then. I had that solarit upgrade.