Keyboard Commands suddenly not working

HI Gang, I’m still relatively new here but I’ve been using Hookpad every night for 2 months now. I’m working on songs previously written on the guitar. I started my 3rd project last night and suddenly none of the keyboard commands are functioning. I have been using Brave Browser. I checked the recommended browser. Shut everything down and re-opened in Chrome. No avail, Space bar does not function to start and stop the transport. I’m so used to using the space bar and to have to mouse up to the transport controls…arrgh breaks my train of thought! Caps lock is off. Is this something I’ve blundered into in the settings? Is there an issues on the mother ship? Anyone else having this issue? Thanks in advance!