While exploring I came across several trees that look like they had been cut in half on the edge of a biome. I'm used to this happening in old versions of Minecraft (several years ago), but I'm unsure how common it is now. I didn't think much of it until I walked past one and started taking damage. I tried to build around the tree and the blocks I placed changed into parts of the tree that were "there," but invisible and without collision. Image 1 shows a found tree, and Image 2 shows what happens when I place dirt blocks along a cross section of the tree. Where leaves are supposed to be, the dirt turns into leaves. If I walk through an invisible part of the tree there is no collision, I take damage, and the breath meter appears (possibly only where wood is missing, cant confirm if leaves also damage/suffocate)
In image 3 i come across a mushroom tree several chunks deep into the forest biome displaying the same bug. I fill in a section with sand, then mine it out and sleep. Sleeping causes the rest of the mushroom to appear (image 4) except what I have already mined out previously.
Image 5 is a reference for where I encountered the bug. I found it in several chunks along the edge of a dense forest biome (with dark oak and mushroom trees) bordering a plains biome. In the bottom right you can see a tree displaying the bug.
PS- I was unable to find any blocks other than trees displaying this bug, but this may be because of how easy it is to spot parts of trees missing; versus it being harder to tell where dirt or stone are missing
PPS- Encountered on a realm
Linked issues
relates to 1
Attachments
Comments 2

Cleaning up old tickets: This ticket has not been updated recently (1 year+) so is being closed as Cannot Reproduce. If you feel this is still a valid issue, then please comment below and update the ticket description following the Issue Guidelines.
Quick Links:
📓 Issue Guidelines – 💬 Community Support – 📧 Feedback – 📖 Game Wiki
I can confirm this on Realms 1.0.0
It seems to be a sync issue with trees generating in new chunks but not updating the changes they are causing to the already loaded ones. Spawn int a mob there in creative causes the mob to float to the would be top of the tree then fall down on the client but then shoots back up on the next update.