Nice fight! [This INP only plays round 1, then exits. You uploaded the correct file? -br] Plays back fine on my computer. I didn't delete the nvram though, could this be the cause?
It looks like a wrong upload: the playback intentionally ends with a score of 21500 at the start of the second round (no movement on the second round). The INP file is only 557K - far short of a long replay for 2.8M.