Circular reference detected for service "hook_event_dispatcher.module_handler"

I also have the issue at the moment, but only when enabling SDC, otherwise it was working well.

I'm going to test more.

I think it's attached to this issue: https://www.drupal.org/project/tracer/issues/3387444 🐛 Typed property Drupal\tracer\EventDispatcher\TraceableEventDispatcher::$tracer must not be accessed before initialization Fixed
After installing the update for Tracer(1.0.1), the issue got sorted.

I think it's attached to this issue: https://www.drupal.org/project/tracer/issues/3387444 🐛 Typed property Drupal\tracer\EventDispatcher\TraceableEventDispatcher::$tracer must not be accessed before initialization Fixed
After installing the update for Tracer(1.0.1), the issue got sorted.

The Tracer update didn't sort the issue out after all.
Hotfix patch is provided.

This also only occurred for me once I installed webprofiler. hook_event_dispatcher was working fine before then. Given that this is the case for others as well maybe this issue should be closed in favour of the related one in tracer?

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