View: https://drive.google.com/file/d/1VOOcG9hB6tRcAIgUTcVlZezNQkERzKdO/view?usp=sharing
Edit: You might be saying to leave Mt. Coronet and go back to the resort area, I tried but it still doesn't work for me. To clear up what happened, the order of events was this: iron island regi room -> resort area -> faint to grunt outside of regirock room -> return to Hearthome city -> save by accident -> go to mt. coronet to try and get to snowpoint city. If I try fight in regice room -> return to resort area -> fight in regirock room, then the mining spots never appear and I never talk to dawn. I assume talking to dawn was after the regirock room and before regice room, because it never happend to me. My problem is this: if you faint before the regirock room, return to the mainland, and then save, there is no way to get back that isn't fighting the regice room, and that breaks the game.
Dawn's supposed to appear between Regirock and Regice if you return to the Resort Area. I just made an update that makes Roark in Eterna a bit sooner so you can actually return there because I previously made him appear shortly after the point you were at.