Trying to set up a Child Theme (Jupiter Child Theme 5.9.5) with the Jupiter v5.9.8-b2 (parent) creates a Bug - the Header/ Logo repeats three times down the viewport.
Deactivating the Child and using the Parent, it works as intended.
I checked the issue on my side and this definitely seems to be a bug. I have noted this bug and it will be fixed in future release.
Thank you for making Jupiter better.
Had same problem. Thanks for posting.