I wanted to let you know that I did log this with development (FUS-28858), but there are no new developments on that front. Also thanks for the update on the Recovery Documents.
@PhilProcarioJr That is a great hint about it occurring on multiple computers.
I'm wondering if it is related to loading the global options or preferences that you have set. I recall sometimes seeing a green progress bar appear in the bottom right area of the canvas when the UI is initializing/busy. I wonder if its that progress bar showing up. Do you ever see this progress bar?
... It could have changed in the latest release.
I believe the global preferences are synced locally to XML files stored in the Options directory.
C:/Users/***/AppData/Roaming/Autodesk/Neutron Platform/Options/***%Audoesk ID specific%***
Macintosh HD > Users > *** > Library > Application Support > Autodesk > Neutron Platform > Options > ***%Audoesk ID specific%***
If you close Fusion 360 and delete this directory, it will recreate it from the cloud upon launch. There is some risk that you will lose toolbar customizations and preferences; however, it may be worth a try to see if it would get rid of the progress bar.
I hope that helps. Please let me know if there are any questions.
Thanks,
Nathan Chandler
Principal Specialist