I read some reviews for Infernal Machine and some mentioned the game crashes after level 7 without a mod. Has this been fixed since 2018?

I played and finished the game in 2020 without mods and I didn't experience that bug.

I did have a couple of crashes when I was firing at enemies, which I solved by reloading and using a different weapon.

I just played Level 7 Palawan Temple just fine without mods on Win 10. From beginning to Level 8, I've only had a few collision glitches but zero crashes. It's very stable. So far.