It's incredibly rare to glitch through walls but it happens.
To my knowledge, there's no good way to fix that. I've iterated on the mod for years, and I haven't found a good solution for not clipping yet. Ironically, I just thought of one now, while I was typing this, but I'm super busy with work IRL right now. Hopefully I'll make some time later this week (or month, depending) to actually code it.