Well, just f*** me!
first I couldn't open .pofs I converted (converted .cob to .pof, edited it, tested it in game, want to make some .pof adjustments, like adding thrusters? CRASH WHEN LOADING)
Now, finally the .pofs load, but now the .cobs won't convert properly!
It doesn't crash, I just get...NOTHING. Empty screen with nothing. Like I didn't even load a model. Starts loading .cob and stops.
and it's the same .cob I converted earlier, I just moved a sub-object