Block inside called procedure not using its trigger?

Okay so this might be a bit confusing but basically:

I've got a procedure (Procedure 1) that basically does some stuff and calls for another procedure (Procedure 2). Procedure 2 basically checked for anything below the block in Procedure 1 and if it's air then it will place a block. This block that is placed by Procedure 2 has a trigger (When block is placed) procedure. This was working absolutely fine, but when I put the contents of Procedure 1 inside an If statement with a logic NBT check everything still works except the trigger that the block has in Procedure 2, it doesn't run the When block is placed procedure but when I delete the logic NBT check, it works fine?

Any ideas? TIA