To prevent a dependency on block entities in block templates/preprocessing, we made the id optional. However, it looks like the mentioned template file is still relying on, resulting in invalid and duplicate ID's in case you are using a menu block in a context where no ID is provided (e.g. with page_manager).
Not sure how to fix this, can we use the derivative plugin ID there somehwere? Might not be unique, though.
I once discussed with @timplunkett about being able to rely on a unique ID for blocks and make whoever is using block plugins responsible for setting one. i thought I opened an issue, but I had no luck at all at finding that again.
Needs work
11.0 🔥
It affects the ability of people with disabilities or special needs (such as blindness or color-blindness) to use Drupal.
It would make a good project for someone who is new to the Drupal contribution process. It's preferred over Newbie.
The change is currently missing an automated test that fails when run with the original code, and succeeds when the bug has been fixed.
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It's likely this issue predates Contrib.social: some issue and comment data are missing.
sanket.tale → made their first commit to this issue’s fork.
I'm closing this as a duplicate of 🐛 Menu blocks in Layout Builder get malformed aria-labelledby attribute Needs work . The other issue is newer, but there has been a whole lot more work and discussion that's happened there.