Bracket persists after bracketed instrument deleted

Issue type

Engraving bug (incorrect score rendering)

Description with steps to reproduce

Create 2 instances of the same instrument: in the attached score 2 bass recorders. The score will have a bracket around them.

Delete one instrument in the instruments panel. The bracket in the score persists around the remaining instruments.

(Seriously? I can not attach

Zuiderzee Ballade - selection.mscz.zip

musescore files to a Musescore ticket???)

Supporting files, videos and screenshots

Create 2 instances of the same instrument: in the attached score 2 bass recorders. The score will have a bracket around them.

Delete one instrument in the instruments panel. The bracket in the score persists around the remaining instruments.

(Seriously? I can not attach

Zuiderzee Ballade - selection.mscz.zip

musescore files to a Musescore ticket???)

In which versions of MuseScore Studio is this issue present?

OS: macOS Sequoia (15.7.2), Arch.: arm64, MuseScore Studio version (64-bit): 4.6.5-253511702, revision: github-musescore-musescore-653f38d

Regression

I was unable to check

Operating system

Mac OS sequoia 15.7.2

Additional context

No response

Checklist

• This report follows the guidelines for reporting bugs and issues
• I have verified that this issue has not been logged before, by searching the issue tracker for similar issues
• I have attached all requested files and information to this report
• I have attempted to identify the root problem as concisely as possible, and have used minimal reproducible examples where possible