This happens to me basically any time I use a script entry window that isn't anchored inside a pane. It doesn't even have to be the full, resizable pop-out window that a lot of these little windows offer.
Having the editor unexpectedly and randomly fight me over characters is very frustrating and when it happens whatever development momentum I have in the moment craters.
Given this has been occurring at least since Nov '23 — see this related thread, which was closed despite subsequent reports of it not being fixed — and so many users have reported it while regularly being asked for repro steps, it makes me question how much dog-fooding (i.e. usage of software by the users building it) is happening at Retool.
See attached short video wherein I'm attempting to edit the click handler of a table's row action, but the text entry position keeps moving and/or deleting what I've entered.
In terms of my connection, I'm getting consistent 300mbps down / 40mbps up. we're on Retool Cloud, v3.186.0-7667538 (Build 240269)