Error when unloading bundle

In firebase crashlytics I see the following error:

Non-fatal Exception: java.lang.Exception: WrappedException : AssetBundle.Unload could not complete because the asset bundle still has an async load operation in progress.

I have never seen this while testing in the editor or on my devices. I do not touch the asset bundle API in my project, I only use Addressables.Release(handle). How can I learn more about this error?

bump?