Sketchup Layout 2020 Shape style pannel freeze

When trying to edit options in Shape style, the pannel freeze after the first change of no mether what I do: changing Stroke, Dashes or Arrow size.
this bug exist only in Shape Style pannel.
I’ve tried to uninstall / install Sketchup 20.1.229 and 20.1.235, but the same issue exist

how is it now? i am just trying layout 2020 and have the exact same problem. shape style freeze. i have to close the layout, re open. of course that is frustating.