Can't drop mules on enemy and neutral mineral patches

Hello guys, so i tested one melee 1v1 map that created with my friend and when i wanted to troll him and drop mules on his mineral patches to mine his minerals the CC didnt let me drop them, showing the error mesage “Can’t find placement location”. The same thing with neutral bases. It doesnt let me drop the mules, but the moment i land a cc on the base it lets me. I tried to find solutions but no results so far. Does anybody have a suggestion and thanks in advance?

That’s strange. Maybe it’s a vision/fog of war thing.

i just changed the mineral type and it worked. I used Opaque mineral patches but prob they are bugged or smth