Jupyter Dashboard Grid exception

[SchmidiPS]

Hi all,
maybe someone can help me with that issue?
The Dashboard Grid View does not work at all...
Jupyter Notebook Version: 6.0.1

I've used the conda install command and also tried pip install.
The Report View works fine, only if I switch to the Grid View and try to move a Cell I get a Exception, see attached screenshot.

Any hints?
Thank you!

Kind regards,
SchmidiPS

[u98106]

+1. Issue exists in 6.0.3 as well. Report-view works well but not grid-view. And return to notebook is broken too.