The armor and shields created automatically with the recipe book are de-equipped when you try to equip them with the right mouse button
Instructions:
Craft armor or shield automatically with the recipe book (right button)
Place the armor on the inventory bar
And press the right button with the armor in hand
Thank you for your report!
We're tracking this issue in MCPE-104820, 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