Tonight I tried to upgrade my project version from 2021.3 to 2022.2 and to use UIToolkit instead of UGUI. Everything was fine until font doesn’t changed. I realized new font asset is required based on manual. Strange thing happens then.
In Window → Text → Font Asset Creator, Generate Font Atlas doesn’t response for the font I used for TMP. I closed the Font Asset Creator window and tried to Right Click on the font in Project window → Create → Text → Font Asset. But nothing happens. I tried other fonts that was not used and the SDF asset can be created. In addition, if Font Asset Creator window was opened again, it will stuck on this layout even if I have selected the font I used for TMP as Source Font.
The solution for me is to move fonts out of project scope (in order to delete .meta files) and move them back. But it might break the previous TMP settings.