When typing using a braille display, text shortcuts do not work unless you write them in eight-dot mode
A hold out from 12, this bug, at least, does have a workaround.
Bug First Encountered
Device(s) bug has been encountered on
How often the bug occurs
When you wish to utilize a text shortcut, press space with dots 2-3-6 to toggle braille input to eight-dot mode, type the text shortcut followe by a space, and then press space with 2-3-6 again to get back to your preferred braille code for input.