I know I have reported this issue thru tech support over a year ago but I figured I’d share with the rest of the people here. When you have many custom widgets - over 30 so far (most are popular according to my clients) but when it comes to that is no longer popular or is not accessible-friendly or have newer plugin, I unticked the old one.
As the list gets longer, it is cut off from Widget Configuration. The only solution is to use Web Inspector to increase the height. I do not want to do that each time. Please make it auto-height if the widgets are added. I hoped this will be resolved in 5.3 update. Thank you.