Well, I think your problem may actually be a faulty hydrometer. Dents usually mean the eggs are too dry, or are infertile. Mold generally means too wet. If your humidity is at 88%, its actually a little high for incus. Did you get the eggs in there quick after laying? sometimes if I'm late picking them up, they will be slightly dented, but once they're in there they firm up. Are you sure thewy are fertile? They may also be hatching if there is a new dent and the time is close.
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1.0 Hypo stripe, Het Rainwater from JL (BJ)
1.0 HypoTang from Crested (Apricot)
1.0 Tremper Albino (Cloud)
1.0 SHCT hatched by me! (Sunny)
0.2 Hi-Yellow Leopard gecko (Beatrice, Pepper)
0.1 Normal (Freckles)
0.1 SHCT Leopard Gecko (Brite)
0.1 Tangy Mutt Leopard Gecko (Rainbow)
0.1 Tremper Albino (Leucy)
0.1 Jungle hatched by me! (Hazy)
RIP Peaches, Ghost, Bill
Hatched: ~30
Available:
11 month male circleback tang