Side bearing problems with Variable

I am losing side bearings for glyphs with components
I read that it’s a bug from Apple or Chrome !?
I also read that a HVAR table might help. Is there a way to do this now?

Which app and OS version?

Safari and Chrome on High Sierra 10.13.4

Which version of glyphs ?

the latest, 1186

This is a problem in MacOS. I reported that bug and all we can do is hope it gets fixed.