Final letter in a text button sometimes clips (Godot 4.1.3, iPhone 6/7/8)

[scripturial]

Godot version

4.1.3

System information

Sonoma 14.0, Xcode 15.0.1, iPhone (see below)

Issue description

Rendering text inside a text button clips the final letter, but leaves a space where the letter should be:

I am trying to narrow down which devices this is a problem for. Based on user feedback it appears that the problem might be limited to iOS 15, or specific older models of iPhone with a 750 wide screen resolution.

Steps to reproduce

It is difficult to reproduce. The problem occurs on:

• iPhone 7 / iOS 15.8

The problem does not occur on:

• iPhone XS Max / iOS 17.1.1
• iPhone 14 / iOS 17.1.1
• iPhone SE 3rd gen / 16.6
• iPad Air 5th gen / 16.5

The app runs with the older "compatibility engine". And the buttons are using a google font embedded into the app for cross phone/os consistency and for support for characters in other languages, if it matters, the font is NotoSans.

Minimal reproduction project

Unfortunately I have not yet been able to reproduce the problem, I am still investigating.

[scripturial]

In case it's helpful to note, clipping and overrun behavior is disabled. So it is strange that any letter would disappear like this.

[scripturial]

It doesn't seem likely, but I can't help but wonder if this issue with determining the text width needed for the button is connected somehow to #80907

There shouldn't be any fallback occurring in the example screenshot as the characters should all be in the default google noto font (but I do have a fallback font for asian characters)

[Rindbee]

Possibly a duplicate of #81624.

[Calinou]

Thanks for the report! Consolidating in #81624, as this is likely due to the same cause.

If you can compile from source, you could test #87335 to make sure it fixes the issue on your end.