Note: This should be in MCPE - do not know how to move it.

Brief Summary:

I have 1176 custom slab combos and their corresponding shapeless recipes.  9 of them are reporting as duplicates.  They all happen to be of the minecraft:stone_block_slab2 or 3 or 4 variety.  I have isolated all of the issues and included them in a mcAddon file attached. 

All files are named with the formula  blocktype1_dataID1_and_blocktype2_dataID2. 

For the recipes, inside ingredients match the filename.  Impossible for them to be dups.

Steps to Reproduce:
Using one of the errors as an example:

1. Make one shapeless recipe file with  {"item":"minecraft:stone_block_slab2","data":3},{"item":"minecraft:stone_block_slab4","data":0}
   2.Make another with  {"item":"minecraft:stone_block_slab2","data":0}

   ,{"item":"minecraft:stone_block_slab4","data":3}

Observed Results:
Content Log Errors - Attached

From above example:

[Recipes][warning]-recipes/dupes/stone_block_slab2_3_and_stone_block_slab4_0.recipe.json | scr:stone_block_slab2_3_and_stone_block_slab4_0 | Recipe "scr:stone_block_slab2_3_and_stone_block_slab4_0" has the same ingredients as slab_combo:stone_block_slab2_0_and_stone_block_slab4_3's recipe but outputs slab_combo:stone_block_slab2_3_and_stone_block_slab4_0 instead. Adding duplicate crafting_table recipe.

Expected Results:
no recipe duplication errors because they are not the same.

Attached:

1. addon with just the recipes/blocks in question

2. content log