[Drupal 10.1] Flickering sidebar nav width on page load

I'm seeing the flickering toolbar on every page load of a Gin admin theme page after updating to Drupal 10.1

This needs a review

I'm getting what I think may be a similar issue for the horizontal toolbar where the secondary menu dropdowns display briefly and then disappear on every page load. I tested the patch and it did not help in this situation however.

It should fix the issue for all toolbar variants. Make sure to clear the cache after applying the patch.

If that's not the case - can you please add a video? TY!

@michaellander ah you were referencing the secondary toolbar on page load. I think I found the issue. Should be addressed now. Please review.

Let me know if you can't recreate and I can dig further. Could be a conflict with another contrib module or something.

Yes, also see:

• https://www.drupal.org/project/drupal/issues/3370930#comment-15127711 🐛 Aggregation URL hashes should be built from normalized list of libraries Fixed
• https://www.drupal.org/project/drupal/issues/3370828 🐛 Ensure that edge caches are busted on deployments for css/js aggregates Fixed

I am getting flickers on every page after updating to 10.1 with Gin, and not just with menus.

@kevinquillen that's actually nothing we can fix in Gin as Core changed how it generates and loads CSS in general in 10.1.
@michaellander maybe that's also the problem you're facing.

See [#2888767] & https://www.drupal.org/node/3301716 →

@saschaeggi it doesn't happen when the menu is left aligned. What would be different in that case? I'll check out those other issues, thanks!

I still could not reproduce your issue @michaellander – feel free to create a follow-up.

Automatically closed - issue fixed for 2 weeks with no activity.