The shield on mobile hides itself

In Minecraft Bedrock Mobile, I don't know why it happens, but when I enter a world in first-person view, the items in my primary and secondary hands glitch. The affected items are: spear, enchanted golden apple, shield, bow, and I can't remember the rest. This bug is particularly annoying because the shield hides below the screen, making it impossible to see if it's in my secondary hand. I'd like to see the shield glitch made optional, as it's useful for PvP in my opinion. Oh, and I forgot to mention something: the error is in vanilla because with textures like actions & stuff it's fixed, although I don't know how it is with textures without animations.