These are the fonts that were reported as having a "serious error":

Bimbo_JVE.ttf
Curse Casual.ttf
Grandstander-clean.ttf
Grandstander-clean.otf
Barthowheel Italic.ttf
Barthowheel Regular.ttf
Dimbo Regular.ttf
Dimbo Italic.ttf

What's going on here?

https://youtu.be/ZJ8QsMeTR2M?t=49s

Problem with Grandstander Clean

There is self intersection in Bimbo_JVE.ttf would that cause a mac to report it as a serious error?
It's in the Š (Eth) š (eth) „ (Yen)