S88 Mk3 causing unstoppable playback in Logic

Project10

Hi. This started today. When I open a Logic Pro 11.2 project it will immediately start to playback and there's no stopping it. And a recording enabled track will start recording. Whilst the keyboard has some control over some Logic functions it wont stop the continuous playback and recording. I’m running 2023 MBP Sequoia 15.5 & Logic 11.2 and everything works until I switch on the S88. I’ve done a hard reset and the keyboard is up to date. Can anyone help please? Thanks,