> Cough, cough. I have found this to work:
>
> ```
> \version "2.25.5"
>
> #(set-default-paper-size "a6")
>
> {
> d'4 e' g' d' |
> d'4 e' g' d'( ~ |
> \once \override Staff.KeySignature.break-visibility = #all-invisible
> \break
> d'4) e' f' d' |
> d'4 e' f' d' |
> }
> ```
Very interesting!
> Looks like some invisible grobs are interfering.
>
> Do we already have an issue for this problem?
Suprisingly, no – at least I couldn't find an entry. I've now created
https://gitlab.com/lilypond/lilypond/-/issues/6631
Werner
