invisible armor stand with held item don’t render properly.

When an armor stand holding an item is invisible, the item won’t render properly. This is very inconvenient for me since I make a lot of command creations on Minecraft pe. The armor stand’s armor didn’t show either. When I tried to force it using /effect and/or /replaceitem it all didn’t works, there is currently no mods on my iPad so I don’t know what is causing this happen, please fix this. Thank you.