Hi, I found that my app's font does not works after installing KB4058258 (Windows 10 x64).
My app used TextBlock control with custom FontFamily which embedded into app's Assets folder. It worked correctly from initial release (2014~, yes, it quite old ...).
But recently, I received user reports that font is set to default font (not app's font). After investigating, I found that KB4058258 makes this issue.
Is there any method for fixing this issue? Thanks.