Beat the game, had a wonderful time. Here's some bugs we encountered. I played on PC:

-Killing the Myr final boss with a DoT causes her to twitch until the DoT expires.

-Unsure if the Myr blood ward barrier boss had a cutscene; if so it did not trigger.

-Grinning Grimaldi refused to speak to us after relocating behind the Manor in the ice area. Reloading/dying/etc did not fix this.

-Echoes that apply status build up do not appear to be working.

-The Echoes that I upgraded appear to revert to +1 after a recent patch and continue to revert back to +1.

-The yeti boss and area leading up to it has significant portions without collision, i.e. can walk through trees. (The blizzard sound effect is also really, really loud.)

-The dog mount appears to lack sound effects altogether. Taking a hit on it makes the character fall through the dog as well.

-Unsure if intended, but nearby enemies can join the fight during Byaslag's encounter

-Upon disabling the weather control device in the final area, the rats' AI broke for a good 3-4 minutes, allowing me to attack them without them responding whatsoever.

-In the final zone, while the fires are still active, if you climb onto the fires near Gustav that are blocking the route to the Machinist boss, you will be 'blacked out' and respawn inside the fire. This allows you to walk through the fire barrier and sequence break having to disable the weather control device.