Change Left Sidebearing Shortcut no longer working?

Version 2.6.7 (1356)
macOS 10.15.7 (19H524)

I suddenly can’t use ctrl+left ctrl+right to change the left and right sidebearings?
According to the help it still should be the case?

It works in G2, and another shortcut is not hijacking it either?

So it is not working in Glyphs 3? Do you have any plugins installed or setup custom shortcuts in the Glyphs preferences?

Hmm I started glyphs app with plugins disabled (opt+shift) and indeed it works. I wonder which plugin is hijacking that

Possibly mine, if you have Keyboard Selection Travel installed. See the troubleshooting section in the read-me to fix the issue:

I’m working on smarter, contextual keyboard shortcut detection, but it’s trickier than I thought is could be. In the meantime, applying the fix from the troubleshooting section should work.