Hi,
i have opened and tested a font to get this bug. all details send by email.
I have tested the font on my system, but it works just fine.
Can you share the text that you use within the Font Test dialog?
TestText.odt (6.42 KB)
Test text attached, maybe the problem with my system, but I had checked other fonts it was worked well, only that font was with bug.
No problems here.
Fine 