TMPro - UI Effect stops working when switching languages (Fallback SDF)

[Nicolas-Red]

Describe the bug
UI Effects stop working if you switch between different languages and have fallback font SDFs.
I think it has to do with the submeshes it creates.

To Reproduce
Steps to reproduce the behavior:

1. Create a font with fallback SDF language files. (Ex. English font with Arabic fallback font)
2. Swap between the languages a few times in your TMPro Text.

Expected behavior
UI Effects should apply correctly when changing the text field.

Screenshots
Here it shows the flow:
First is working English.
Second is working Arabic.
Third is when it swaps back to English, the UI Effect is now gone.

Environment (please complete the following information):
Version 5.2.1
Mac Editor
Unity 6000.0.28f1
WebGL

[mob-sakai]

Thank you for your reporting!

Could you please attach a minimal project (included Assets, Packages and ProjectSettings directories) that reproduces the issue?
Of course, you don't need to include any secret assets from your project. Feel free to use free assets instead.

[mob-sakai]

The issue is not reproduced on my environment...
(Sorry, I’m not familiar with Arabic...)