Just a small thing
If you go outside and straight ahead , you find an open crate with a coin on the bottom, you cant pick up that coin.
The only thing i encountered, since i like to collect everything.
You can, just try to get around that crate from the side of the wall. You can switch to the first-person view to make it easier. At some point, the coin will be identified as an item and you will take it, I have tested this many times.