Random keys dead on L Side - Tried Hardware Test and Keyboard Viewer.

Tried all Apple suggestions. Nothing showing as wrong; however, several keys on left side of the magic keyboard randomly stopped working (even on 100% charge). Started with Volumeup, then migrated to Arrow keys, Enter key and others. Keyboard is new, has been in storage and never had any problems, drops or spills. Any thoughts on how I might fix this? Or can I reinstall a keyboard driver (like on a PC) to test? Thanks for your answers.