If a data driven item with the minecraft:block_placer component references a block that has a placement filter of down, north, east, west, south, or side, it will not be able to place down the block on the respective block face.

How to Reproduce:

• Create a basic behavior pack including a block and an item.
• Make sure the item has minecraft:block_placer .
• Make sure the block has minecraft:placement_filter.
• Create a world with the Holiday Creator Features experimental toggle.
• Try placing down a block, observe the results.