Minimum altitude limit for AI aircraft in the CDK?

Hi, i’ve been trying to make a mission where an ai plane flies close to the ground, but to no evail. I’ve managed to do it in the past, i’d say 3-4 month ago. but since about a month or so, impossible to do it again.

Even using the “unitmove” trigger, or the waypoints, removing colisino detection and all of that, impossible to make the ai fly close or into the ground, it will always stay around 400meters above it. it’s really infuriating that even in the CDK you can’t program units to do what you want them to do. Is there a way to fix this dumb issue?