New Glyphs have conflicting unicode value and does not update after being removed

I create period=periodsuperior and the resulting glyph has /period’s unicode value. When I go to Font tab and remove the unicode value, if I then copy the periodsuperior and try to paste it in a text tab, period shows up. Closing and re-opening the file makes it work again.

Happens for most punctucation I’m generating like this.

What version do you have?


Similar issue, generate glyph formula:


and what shows up is an empty component for commaaccentcomb which doesn’t exist in my current font.