Hopefully it’s just me but in case it isn’t. Lately I’ve noticed that dashboards and Looks, after initial load, do not scale/resize the visualisations correctly. Here’s the top-right corner of one of the looks:

and when I click “visualization” pane twice, then it’s rendered correctly
On Dashboards it’s worse because I can’t toggle it to correct it
Above the dot is already after the viewport and the purple line actually goes well beyond it but it’s not visualised..

