Freelancer
Well-known member
There shouldn't be any changes made to the sidebar itself. Unfortunately, not all third party widgets are currently supported, as not all third party widgets are coded the same. We are working to add more and more support for this.
If the widgets that you are using are not working, then you can turn it off in Style Properties > UI.X Sidebar > "Gridded Mobile Sidebar."
I somehow could narrow it down while testing it with different browsers. The issue happens on different browsers. On Safari 10 for OSX in simulation of responsive layouts. In Firefox in the simulation mode but not in Chrome (while narrowing the browser window) and it did also NOT happen while testing it on iPhone and iPad directly.... Safari and Firefox for MacOS have the troubles though...