All of other slab types have a crafting recipe of 3 blocks to 6 slabs, but here on resin brick, you place 3 blocks and get only 1 slab. I think this is an inconsistency.
How to Reproduce:
Open Minecraft Bedrock Preview 1.21.50.25.
Generate a new world.
Get some Resin Brick Blocks.
Open a crafting table and try to craft a slab.
Observe the recipe's input and output.
Can confirm on Windows.