Hello, everyone.

We've released UModeler 2.8.11f2 to hurry up fixing some issues.
Version 2.8.11f2 - Jan.18.2022
- Asset : Includes the PastelTown-BuiltInRP-UModeler package by default.
- Fix : Fixed a TryGetComponent() issue in Unity 2019.1 or less.
- Fix : Fixed an issue where edited parts continue to appear and disappear while modifying when both the scene view and the game view are opened.
We released another UModeler for hotfix update.
Version 2.8.11f3 - Jan.19.2022
- Fix : Fixed an error occuring when exiting the prefab mode.
- Fix : Fixed another issue where edited parts disappear while modifying and appear again at the end of editing intermittently when both the scene view and the game view are opened.
Have a nice day with UModeler!