When cinemachine 2.8.4 is installed via Package Manager, standalone profiler hangs on both windows and mac. Uninstalling cinemachine makes the standalone profiler working again.
*Only standalone profiler hangs, normal profiler works just fine.
Hello,
Just to let you know we have a fix for it and should be out in the coming releases. Thank you for reporting it 
I can’t see this issue in “known issues” of 2021.2.7/8/9. I’ve tried 2021.2.10 - the bug still occures. Can you tell when you going to release the fix? Thanks.
@antoinecharton Is there any update on when this will be fixed, or workarounds?
I’ve recently updated a project to Unity the 2021.3 LTS, and keep getting a freeze on the standalone profiler. Strangely it wasn’t happening in the 2020.3 LTS. The modal popup in the profiler window specifies that it’s waiting for code to execute in Cinemachine.Editor.CinemachineSettings.OnPackageLoadedInEditor. Looking at the code, it seems to be an attempt at making sure the Cinemachine logo texture is set. Would embedding the Cinemachine package into my project, and then commenting out lines 264-273 of CinemachineSettings workaround this bug and restore standalone profiler access?
yup
I have this same issue too,
The standalone profiler freezes when opening it.
Using Unity 2021.3.0f1.
This has been fixed. Please upgrade your Cinemachine version to get the fix.