2 Masters and 4 Instances. Errors in the export (Interpolation)?

Hi Everybody,

I’m new to the Forum and pretty new to the Glyphs 2 App. I currently have an issue. I’ve got 2 Masters (light & Semi Bold)
and from those to I Made 2 Instances and 2 more as in Between’ers (Regular & Medium).
When I Export only half of my characters convert within the “in Between’ers”.

The characters that weren’t successful get a marker in the left side corner. Is there any function to resolve this matter??

Thnx in advanced.

You need to make sure that the masters are compatible. There are some tutorials about multiple masters. They explain what to do.