Utter insignificance + Ashaya, Soul of The Wild
Utter Insignificance doesn’t seem to be working properly. It is supposed to remove all abilities of the creature it enchants. In my case, my opponent enchanted my Ashaya, Soul of The Wild with Utter Insignificance. Normally if the creature “Mythweaver Poq” would be put into play on my side of the field while Ashaya was also a creature I controlled, it would trigger an infinite loop (since Mythweaver Poq would keep duplicating itself, as it detects itself as a land and the duplicate it creates is not a token). I played Mythweaver Poq while Ashaya was enchanted since I assumed the loop wouldn’t activate, as Ashaya was supposed to lose all her abilities, meaning that my nontoken creatures would no longer count as forests. However for some reason, that ability of Ashaya’s was not lost, and Mythweaver Poq registered as a land and triggered the loop. Maybe I’m missing something, but looking through all 3 of the cards I listed and reading over them carefully, there’s no reason I can think of for this to occur legitimately and I believe it has to be a bug.

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Rezzahan#77802 commented
Not a bug, this is as it should be. Ashaya loses her abilities in layer 6, but turns all nontoken creatures you control into lands already in layer 4. The same happens with Kudo, Ygra, Kaito, etc. An ability that grants a card type will always apply even if something tries to remove the ability. Because that ability losing simply happens too late to matter.