I have tested my flashing light (multi frame animation) with positive animation time in MSTS. also MSTS stuck in the first frame as it does OR. So I think this is not a Bug, this is compatible with MSTS.
I have tested my flashing light (multi frame animation) with positive animation time in MSTS.
also MSTS stuck in the first frame as it does OR. So I think this is not a Bug, this is compatible with MSTS.