Arrow keys cannot be used to select text in the Messages composer box

Number:rdar://FB8904673 Date Originated:November 17, 2020 at 21:16
Status:Open Resolved:December 18, 2020 Product Version:macOS 11.0.1 (20B29)
Classification: Reproducible:Yes
When I try to use the arrow keys to either select individual characters (by using the left and right arrow keys), the cursor does not move; nor does it move when I try to select whole lines of text (by using the up and down arrow keys). I know I didn’t just imagine this feature because the expected behavior occurs everywhere else, but in the Messages composer box. It appears that the behavior is not the result of hardware because this incorrect behavior occurs whether using a Bluetooth keyboard or the built-in keyboard.


Please note: Reports posted here will not necessarily be seen by Apple. All problems should be submitted at before they are posted here. Please only post information for Radars that you have filed yourself, and please do not include Apple confidential information in your posts. Thank you!