There is a hack in scripts.bundle.js for select2FocusFixInitialized however this is now working with Select2 so this hack actually breaks the ability to use keyboard functionality (up/down/esc) when search field is hidden.
I commented out this hack and the keyboard functionality started working.
I'm using Good theme but probably the same in others.
Hi ,
Thank you for the heads-up. We will double check it and consider removing it
Regards.