Thick strange mycelium on top HELP #3

I checked my monotub and I opened it and noticed that the cake is dry and the liner is actually floating. All the moisture has evaporated to the top and sides and ran down under liner. I'm keeping room temperature around 80°-84° and I have a seedling heat mat under it. I'm assuming I've essentially baked it. There's the one big patch of mycelium that's growing and a few white spots. My question is can I save it and how? I've turned the heat mat off. Should I drain the water? And try to mist cake? Any advice would be greatly appreciated! Follow up on tub. Is it normal for it to be so thick? The smallest spot was barely visible 3 day's ago. Shroomok answer: Cake produces overlay/stroma. Maybe it's such genetic from the very beginning or maybe we provoke such issue with extreme FC (too hot, for example). Usually impossible to fix this. But sometimes casing layer helps to trigger fruiting if myc is still wet and alive (dry cottonny crust-like myc is died)

Uploaded on Mar 31, 2025

Open full-size image [3024 x 4032 pixels]

Shroomok's choice