Does not genearte an altas and drops a bunch of warnings

Hello, I've tried to generate TMP assets for some fonts. I'd selected Unicode range - but atlases still were empty.
https://imgur.com/a/aC7dhxB

Besides, editor revealed 50 warnings

Code (CSharp):

1. Unable to add the requested character to font asset [MYRIADPRO-REGULAR SDF]'s atlas texture. Please make the texture [MYRIADPRO-REGULAR SDF Atlas] readable.

Ok I set it through debug settings to readable, but nothing changes. Then I try to re-generate atlas, it's still completely empty and contains 0 symbols, and readable options set back to false.

I use Unity 2021.3 and TMP 3.0.6

This service shows that the source font actually conatains characters that TMP marked as "missing": https://fonts.adobe.com/fonts/myriad#fonts-section

Unity editor just dropped me 20 times next error

Code (CSharp):

1. MissingReferenceException: The object of type 'Texture2D' has been destroyed but you are still trying to access it.
2. Your script should either check if it is null or you should not destroy the object.
3. TMPro.TMP_FontAsset.TryAddCharacterInternal (System.UInt32 unicode, TMPro.TMP_Character& character) (at Library/PackageCache/com.unity.textmeshpro@3.0.6/Scripts/Runtime/TMP_FontAsset.cs:2063)

 

When selecting Unicode Range, you have to enter a range otherwise, nothing will be added.

Can you list the a few of the characters that you are trying to add?

The errors are likely the result of trying to create a font asset with no glyphs in it. This should go away as we add characters.

 

Find a temporary decision by generating custom unicode range: 0400-04FF,0020-007E

 

For your reference (and everyone else) here is a link to Unicode ranges for all languages.