Minecraft PE Crashing with a mashup texture pack I made.

So I made a mashup texture pack containing two different packs and changed the textures that I don’t like or needed to be changed because of the texture glitching. I only changed the items, blocks, and armor models. I didn’t change anything else and so I made the file a mcpack file and loaded the game. The main menu worked but when joining a multiplayer game it crashes and for a world it crashes after a minute. I tried using one of the texture packs which was 128x and it worked fine and then I tried the other and it worked fine also except the mashup texture pack I made. Help please.