I encountered an issue after upgrading from Unity 2021 to Unity 2023.1.19. After placing 15-20 trees, the tree placement process starts to lag heavily, and working in Unity becomes almost impossible. This also affects terrain painting and height adjustments. Restarting the level helps, but only for a short time. After a while, the same problems occur again. I understand that Unity 2023 is in alpha and beta stages and no longer supported, but I didn’t expect it to be this broken. For example, ragdolls don’t work in Unity 2023.2, and terrain issues persist in Unity 2023.1.19. I don’t feel like switching to Unity 6 yet, as the last version where I was able to build the project was Unity 2023.2.20. On any Unity 6 version, all project builds failed, and there’s no guarantee that terrain issues won’t exist there either.
p.s. If I create a terrain from scratch, I don’t notice these problems, and everything seems to work fine. But if I integrate a height map into the new terrain, the same issues begin again. Working becomes nearly impossible. Has anyone else encountered this problem?
Deleting the Library folder and restarting the project didn’t help. After placing 10-15 tree instances, the terrain still starts to lag for 1 to 2 seconds with each tree.
u.p Unity 2023.1.20f: the same terrain issue remains.
This issue disappears in Unity 2023.2.2f, but now there is a problem with the ragdoll, which hasn’t been fixed even up to Unity 6. It’s really disappointing to realize that the entire Unity 2023 series is full of serious flaws. For now, I’ve found a solution, although it’s not convenient. But it’s the only option for me at the moment. I paint the map and place trees in Unity 2021, then transfer the scene along with the terrain to Unity 2023.1.19, where I continue working on the level without making major terrain changes.
In all fairness, you are describing upgrading a project from one non-LTS version to another non-LTS version. Not sure why one would do that from a practical standpoint. Just my 2 cents. Good luck!
The thing is, I had to upgrade from 2021 LTS to a higher version because I’m developing a VR game and encountered a rare bug with some players. After loading a save, they couldn’t pick up items from the floor for no apparent reason. They could take it out of the backpack or from a slot on the player, but as soon as they dropped it, it became impossible to pick up again. The most frustrating part was that when they sent me the save file to check the issue, the bug wasn’t there. For some reason, a failure occurred. I tried multiple versions of Unity 2022, and the bug persisted after loading the save file. However, during testing on Unity 2023, the bug disappeared. Everything worked perfectly, and the items could be picked up and dropped again. That’s exactly why I had to move from 2021 to 2023.
Thanks for the explanation. Also, yikes! That’s brutal. Sorry you had to deal with that. I’m guessing it might be too late to go back to 2019 or 2020 LTS. Anyways, I hope it works out for you and I don’t envy having to explain that bug to your end-users.
Do you still need to transfer your environments for the currently published game/levels or are you just halted on new environment additions/WIP’s? Just asking because I could help you with potential workarounds for either situation. Especially if you have lots of users experiencing the bug, that is presumably still live. You’re welcome to PM me about it if you’d like. Depending on the size of your level, it might even be really fast/easy. Let me know, if you want.