Why is my user panel always scrolling down?

Newbie here,
I am halfway through the 101 course. I am finding that what I term the user panel (the pane where you input visual elements), is sporadically scrolling down. It’s a slow scroll and it’s not initiated by me (at least I don’t think so). No mouse or keyboard aerobics seems to be able to stop it, so I have to reload the button. It’s often initiated by a click on a Webflow button. Once I have also had strange vertical lines within the panel.

Am I alone in this?


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