Possible worldgen issue with 1.16.5 forge 36.0.x

[Deleted user]

Blame mod is telling me a bunch of trees (if not all) are not being registered for worldgen after updating to 1.16.5 - forge 36.0.1 - I know mod is not officially supporting 1.16.5 yet - just thought I'd bring to your attention

****************** Blame Report 1.9.1 ******************

 This ConfiguredFeature was found to be not registered. Look at the JSON info and try to
 find which mod it belongs to. Then go tell that mod owner to register their ConfiguredFeature
 as otherwise, it will break other mods or datapacks that registered their stuff.

 JSON info : {
  "config": {
    "feature": {
      "config": {
        "feature": {
          "config": {},
          "type": "pamhc2trees:hazelnut_worldgen"
        },
        "decorator": {
          "config": {
            "count": 100,
            "extra_chance": 0.0,
            "extra_count": 0
          },
          "type": "minecraft:count_extra"
        }
      },
      "type": "minecraft:decorated"
    },
    "decorator": {
      "config": {
        "outer": {
          "config": {},
          "type": "minecraft:square"
        },
        "inner": {
          "config": {},
          "type": "minecraft:heightmap"
        }
      },
      "type": "minecraft:decorated"
    }
  },
  "type": "minecraft:decorated"
}