Yep. I recreated a same saddle that turned invisble and i works fine on that aspect. However, just noticed the stables are broken now (once you enter it bugs out, you basically get stuck inside) and once you re enter the game, camp, bandana, outfits will be broken. Dunno if its caused by having both trainers (which I had previously so dont think it's the case) making it imposible to advance through the story. You can't set camp, change clothes nor equip hats.