sidebar broken in shiny for python 1.0 and 1.1

Dear All,
when upgrading shiny version from to 1.0 or 1.1 all our sidebars are messed up.
Our App is already quite large, and so far everything worked very smooth.
There is no error message or anything to help us find the solution. Any advise would be super helpful.
happy to share any further information.

Thanks Dom

solved it.
I had a missing
ui.row()
to sow a shiny widget figure.