3ds max rtt - many ray misses only when hit only matching material ids is enabled

Obscura

Hi. As the title says, I've run into a problem with the hit only matching material ids feature. I used this function many times, but this is the first time when I got this error. I get many ray misses when this feature is enabled. It is baking everything fine, when its disabled. But since I have many pieces close to each other (and I don't like to use exploded baking) I need to use it. Anyone met with this issue? How could I solve it?

Obscura

Okay I ended up with an exploded bake, because I'm almost sure its a very unique problem because I didn't found anything about this problem after googleing it (it happened before the post, but you know, hope dies last), and because unfortunately my free time is very limited at the moment, and I don't have time for messing with it and for waiting.