When I load in my world i found the Extreme hill biome so i went up and all of the leaves at a certian hight had turned red, i created a second world to check if this was still happening and it is. Please cheack the extreme hills biome and see what i mean because it isn't letting me give you a photo
Thank you for your report!
We're actually already tracking this issue at MCPE-110049, 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