Hey, I made the second log access public, sorry about that.
that is indeed really, really weird. There's a good chance I'm just making something stupid without realizing it, but I have no idea of what it could be, I tried to run it as administrator too, but it just seems that even with a fresh install, there's resource packages missing.
I'm trying to do it on a brand new machine, I'll see if it fixes any issues I seem to have.
EDIT : right now the fresh install on a new machine (as expected) do work. It must be a hardware issue.
Thanks for the help anyway !