My copy is from Steam, bought in the UK. A patch arrived for my version. It definitely cures the invert mouse and "missing artefact" problems. I never had the graphics glitches, so I can't comment on that.
Checking on Steam, it does not show this as an update for the game in "News", "Client Updates" or anywhere else
Therefore, if you have the Steam version, it may be patched already.
I hope that helps
Cheers