Problem with modeling (in blockbench)

I don't know if it's just me or other people who use blockbench to model mobs have a problem with this. It's about the case when we want to make a fragment of a mob 0 blocks wide. In the game, this fragment looks a bit messed up because it shimmers in a strange way, which makes the mob look strange. Examples of such elements of the mob model that are 0 blocks wide are the legs of a hen or the wings of a bee. Please, if someone uses blockbench and knows how to fix it, please write back.