In the video you can see me first having an trimmed Armor piece in my respective slot and another same armor piece untrimmed in my inventory, when I move those pieces to another empty slot it's okay, but when I switch them with each other the untrimmed Armor icon is glitched and is shown trimmed even though it is untrimmed. (Touch Controls)
Thank you for your report!
We're tracking this issue in MCPE-168358, so this ticket is being resolved and linked as a duplicate.
If you would like to add a vote and any extra information to the main ticket it would be appreciated.
If you haven't already, you might like to make use of the search feature to see if the issue has already been mentioned.
Quick Links:
📓 Bug Tracker Guidelines – 💬 Community Support – 📧 Mojang Support
📓 Project Summary – ✍️ Feedback and Suggestions – 📖 Game Wiki