Try these first:
Verify the game data via Steam.
Make sure your graphics driver is up to data.

Upload your images here. They're only accessible to you on your Discord

@dedmen
Not fully fixed. If the control is in a controlsGroup, it doesn't work properly, it uses the position of its controlsGroup parent, instead of its own absolute position.
In other words, to do the backward selection you have to move the mouse all the way outside of the controls group for it to work (forward selection works fine though):

_disp = findDisplay 46 createDisplay "RscDisplayEmpty";
_grp = _disp ctrlCreate ["RscControlsGroup", -1];
_grp ctrlSetPosition [safeZoneX+0.2*safeZoneW, safeZoneY + 0.2 * safeZoneH, 0.6 * safeZoneW, 0.6 * safeZoneH];
_grp ctrlCommit 0;

@BIS_fnc_KK
This is the same request, so please close it: T153432

In T156218#2155704, @dedmen wrote:

[public] Fixed CEdit Mouse selection not able to select text that is on the left outside of view area

omg please give me a better changelog entry

Did you verify the game cache via Steam?

In T156218#2154163, @dedmen wrote:

Do you know if that is new? As I recently touched exactly that code.

Did you guys try verifying the game data via Steam?

Did you try verifying the game cache via Steam?

Did you try verifying the game cache via Steam?

That's because it's not Arabic. It's Persian:
https://translate.google.com/?sl=en&tl=fa&text=mine%0A&op=translate
https://fa.wikipedia.org/wiki/%D9%85%DB%8C%D9%86

this command would have several applications.

I did this search in an AiO config:

idcSearch[ ]*=[ ]*-1

but no result.

But isn't this dangerous?! Especially if it also supports command line arguments

In T154819#2140158, @dedmen wrote:

repro script doesn't work because you only have single level of items.
_tree tvAdd [[0], "Item 2"];

works tho

In T154293#2140003, @dedmen wrote:

is there a example of displays that change the cursor?

also wrong: forEach. Example shows string as the "command", which should be code.

I think this is wrong too:

createSimpleObject [shapeName / className, position [,local]]

Also see: T155705 and T155704