We got a stackoverflow when checking recipes, took me a while to track them to the recipe advancements.
chiseled_iron_ore_bricks_stonecutting was the one crashing it specifically, but I checked the other files, they all require itself. Is this intended?

The recursion happens here:

	at net.minecraft.server.PlayerAdvancements.ensureVisibility(PlayerAdvancements.java:348)
	at net.minecraft.server.PlayerAdvancements.ensureVisibility(PlayerAdvancements.java:344)
	at net.minecraft.server.PlayerAdvancements.ensureVisibility(PlayerAdvancements.java:348)
	at net.minecraft.server.PlayerAdvancements.ensureVisibility(PlayerAdvancements.java:344)
	at net.minecraft.server.PlayerAdvancements.ensureVisibility(PlayerAdvancements.java:348)

Which ensures the visibility of parent and childrens, which is where the recursion happens.

Other mods also crash, same self reference. I assume it has a reason and Architects Palette is not at fault. Any idea on why it may cause troubles?

I'm guessing what you mean by requiring itself is the "requirements" in the advancements. If so:

I'm using vanilla's recipe generators, dunno what could be causing this honestly.

I see. Considering vanilla also does this I'm certain it's an error with another mod messing with advancements. Thanks for your response!