I’m having a similar problem but also some different ones. After I lost my focus random npc’s will walk into the ring and will be walking in place in the middle ( only one per round) and others will be walking into the fence.
With the Goliath fight, both him and the npc that walked in both elevated up in the middle of the ring and so did I at one point.
Also I don’t know if these two are bugs or are intentional but at the start of every round the fighter will run in place until I get close. And the fighters that jump around and slap I can’t hit until they hit me, idk if it’s just them being hard to hit or what.
Also my second try at it, round 3 started with me stuck to the drink table and no fighter spawned.