Invisible Monsters!!!

Whenever I launch the game and load a new area, be it in campaign maps or Chaos Trial, the first minute I'm in that area, ALL MONSTERS ARE INVISIBLE. I don't see that there is anything there until I blindly do damage to them, then I have their floating red health bar until they're dead. After about a minute, the game finally seems to catch on that I want it to be working, and I start seeing monsters, though during this time, it starts lagging like crazy.

I've tried launching the game and just sitting in town/my hideout for a few minutes before trying to play, and that doesn't help.

This is more a technical issue than a bug.

What are your PC specs? If things are taking a long time to load (invisible enemies), that is most likely due to your CPU not being able to cope (bottlenecking) - PoE is highly CPU-intensive, as opposed to GPU.

I had the same issue, but since getting a new PC with a far better CPU, those issues went away.

Not my PC, it wasn't doing this before Dawn Of The Hunt, and none of my PC components have changed.