the bug seems to be back and more annoying than before 
. It no longer moves the cursor up and down (yay), it only moves left and right and usually only a couple spaces.... thats the good and not confusing news cause I've also noticed things like:
while typing:
- sometimes it will delete the last typed char then move the cursor forward 1 space
- sometimes it moves the cursor back 1 space, deletes 1 or both chars before and after the cursor, then move the cursor forward 1-2 spaces.
while using backspace:
- it will sometimes replace the last deleted char to the right of the cursor
while typing after using backspace:
- it will delete a char to the left of the cursor then replace one of the last chars not auto-deleted to the right of the cursor
- it can also do the things listed under 'while typing'
I tried my best to find all the cases and get the order of what it does correct, but it seems so random it's hard to duplicate a result. Hopefully I haven't missed too many possibilities.
when it moves the cursor, it will always delete something and it only sometimes will also replace a deleted char. it doesn't seem to always place this char to the right of the cursor, as it will occasionally put something to the left of it but I haven't noticed a pattern when it happens yet 
i'm in the code editor for an onChange event of a CheckboxGroup (run script action) in a Module using Retool Cloud in Chrome