Funny Bug - Red becomes black for a symbol with the name Ø

I found a funny bug. A red circle with the name ‘ø’ or ‘Ø’ becomes in Apple Fontbook black.
See the pdf-file for details and the zip-archive for my AI-file and the font I created.
Happy bug hunting.

Red-Black-Problem.pdf (257.0 KB) (1.3 MB)

P.S. I like this forum, where I can updload more the images :slight_smile:

The problem does not occur on Windows with AI CC 2020 and Fontself 3.4. The symbol with the name ø is red in the character set, as it should be.