Brace layers not working properly after Glyphs 862

In an ongoing project, where I have set up quite a few brace layered glyphes, I just noticed, that the interpolation doesn’t work properly anymore.

After some research, I found, that everything works fine until Glyphs v. 862. In all the later versions, the brace layers don’t affect the interpolation in the same way anymore.

So I wonder, what has changed from v. 862 to 864?

Can you send us the file?

Thanks for the quick reply. I’ll see, what I can do and get back to you… it’s not really up to me.

OK, I’ll prepare a file and send it over later on…

file sent