TextMesh Pro Empty squares on certain PCs

Hello. I'm seeing strange behaviour where the same string is displayed fine on my PC and includes an empty square instead of 'I' on some other PCs. One guy made a video on my game and I see this on his screen:

(Taken from his video

)
And this is on my PC:

As I understand he has a Turkish version of Windows, but how can this affect my game if there are no Turkish characters in the string and font atlases are precompiled? How can I fix this?
Thanks in advance.

 

Thank you for yor help. Sorry for the late reply. The game had more urgent issues that needed to be fixed. Unfortunately, I was not able to reproduce the issue by setting my Windows to Turkish language. But anyway, I decided to choose the solution with static fonts and dynamic fallbacks. Hope it will work fine on player's PCs.

 

Are you manipulating those strings to make them uppercase/lowercase? Because the toLower() and toUpper() are culture-aware and in a system with the culture set to Turkish they will replace "i" with the Turkish variant of that character. You need to use toUpperInvariant/toLowerInvariant instead.

 

Probably it is not my case, because I'm just using auto capitalization feature of TextMeshPro - Text (UI) component.

 

That explains it: it's likely TMPro is using toUpper() instead of toUpperInvariant().

If you're not displaying any Turkish text, you can get around this by setting the default culture when the game starts:

Code (CSharp):

1. System.Threading.Thread.CurrentThread.CurrentCulture = new CultureInfo("en-US");