https://mclo.gs/VaGOO43
Seems like its trying to place a furnace upright all of a sudden?

Investigating the code there's no reason something like this should happen - much less because of my mod, which shouldn't even affect this code - as the direction property is take from rotations around the Y-axis of a direction from the horizontal plane.

here's the relevant code:

Direction direction = Direction.Plane.HORIZONTAL.getRandomDirection(random);
direction = random.nextBoolean() ? direction.getClockWise() : direction.getCounterClockWise();
placeFurnace(level, positions.remove(0), random, direction.getOpposite());
furnace = furnace.setValue(FurnaceBlock.FACING, facing); //facing is the direction.getOpposite();

Try it with JUST Artifacts and Additional Placements. If it doesn't crash it's probably due to another mod.