Fonts rendering as coloured rectangles on some Android devices

Hi,

We’ve just launched out title on Android, and throughout development, we’ve had no issues with the font. We have reports from users that the text renders as coloured squares:

The text that’s readable are bitmaps. The text that isn’t, is an .otf font.

I’ve read elsewhere the issue was resolved by changing the graphics settings to use OpenGL 1.1, but on Unity 5.6, the lowest option appears to be OpenGL 2.0.

Any help would be appreciated, as our game is entirely text based (a trivia game), so this issue renders it completely unplayable.

Thanks,
Graeme.

Did you fix this issue?