Sometimes when you move your head around, it will jitter a lot. I have seen this happen on Android and iOS but it could affect other platforms as well.
Steps to Reproduce:
1. Move your head around
2. It might jitter.
Observed Results: The screen jitters
Expected Results: The screen will not jitter
Potential Workaround:
It seems that exiting the game and restarting the game will fix it temporarily.
osfanbuff63
Thank you for your report!
We're actually already tracking this issue at MCPE-16688, so I will resolve and link this ticket 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