Hi there. We are seeing some issues on the metabase system when switching the view between the editor and the question visualization. It can take an age to show the editor or it never fully appears. The visualisation will sometimes not disappear too.
In order to even get this much to appear, we had to open the developer console on chrome and change the scale of the page, as we did this (make wider and narrower) more of the editor would load... but not all
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