Sometimes if there are two dropped items on the ground and a fox picks one up one will go into the fox's mouth and the other will remain on the ground, but the one on the ground still displays the 3d model/icon for if there were multiple on the ground. The same thing happens if multiple items are on the ground and the player picks up all but one (due to lack of inventory space). It does not affect the actual amount of items, however (if you pick up the item that appears to be multiple after performing the glitch you will still only receive one item. Therefore, the glitch is purely visual).
Demo:
https://drive.google.com/file/d/1pz8WmTWTTGvwWOtyix06wGv5smj_rBxp/view?usp=sharing
Thank you for your report!
We're tracking this issue in MCPE-92962, 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