Imported TTF fonts rendering unknown glyph for previously-working characters such as ' or ! or , or ?. In 4.21 the font was working as expected. User states that custom fonts should be forward-compatible or have a migration tool for newer engine versions.
This was reported and tested in 4.23.1 (CL-9631420). This is reproduced in 4.22.3 (CL-7053642), 4.24 (CL-9868118), and Main 4.25 (CL-9868255).
Results: Custom font shows the "unknown glyph" for simple characters such as ' or !
Expected: Custom font to render normally
There's no existing public thread on this issue, so head over toAnswerHub just mention UE-82568 in the post.