Hi Patric,

For your Bluetooth issue, please refer to the MacOS pairing tips section of the manual. It sounds like you need to follow the instructions to forget the device on your computer and H90 and reinitialize the Bluetooth connection: https://cdn.eventideaudio.com/manuals/h90/1.9.4/content/system-menu/bluetooth.html#macos-connection

Can you please be more specific about the Looper issue you described? There is no Stop/Start command. There are separate Stop and Play controls. Play can be use to restart the loop depending on the setting of the Playmode parameter. Please refer to the Looper documentation to confirm if the Looper is working as described: https://cdn.eventideaudio.com/manuals/h90/1.9.4/content/algorithms/looper.html