Incendium and Nullscape advancements not appearing in chat

[normal stone]

I have an SMP with Nullscape and Incendium and the advancements seem kinda broken, not appearing in chat (though my Advancement Plaques mod is still detecting them).
The server also has the Blaze and Caves Advancement Pack, which seems like the most likely culprit, given how much it messes with advancements, so I'm wondering if that might be a known incompatibility.

[dense burrow]

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[lilac garnet]

something else is likely causing that. do you have the "announce advancements" gamerule enabled?

because if the advancement plaque mod detects them, then they are working. incendium uses the vanilla advancement system, and therefore does not do anything special

[normal stone]

Oh that was the problem indeed. I assume then Blaze and Caves is doing something fancy for the advancements to be announced without the gamerule. Thank you!