The dungeon description of Room 4 reads:

  1. Kobold Quarters: … If a fight starts in room 3, the kobolds
    here will wake up, grab their weapons, and come through the curtain
    to help in three rounds.

The map has no curtain between room 3 and room 4.

Recommend you check the posting on DriveThruRPG. An associated image from the cover is not displaying. Don’t let that be the reason folks don’t buy it!

I’m not seeing any issues. Could you send me a screenshot of the problem to alex@autarch.co?