I believe on the last UI upgrade you changed your custom HTML widget to a more code-specific input, which puts the code on one line, in many cases.
ie dropping in Twitter/FB widget codes means you get one long line of code running off the window. In the past it would wrap.
I can chop it up by placing breaks in the line of code, which is a hassle…
When I’m copying variants but want to change the social sharing messages this becomes a real time waster.
a) auto-wrap the code
b) let me resize that window (less desirable)