Here is what I got back from Giesemann just incase this helps anyone else:
What to do if there is no Bluetooth connection to the fixture under Windows?
Quick installation info
1. First, remove any existing Bluetooth devices via Start -> Devices and Printers (or -> Control Panel -> Devices and Printers) or directly via the Bluetooth icon
in the toolbar next to the clock from the Bluetooth environment
2. If necessary, remove existing BT devices (TEszla BT interface or FUTURA)
3. close all running programs
4. disconnect the fixture from the mains
5. Then necessarily restart the computer again
6. Now turn on the fixture again, by connecting the power supply to the mains
7. start the Giesemann software (FuturaBT, MATRIXX BT, etc….)
8. click on CONNECT
9. then select the search dialog the desired light, then "connect"
10. Shortly thereafter a Windows message appears at the bottom of the screen "Connecting via a Bluetooth device is made": Click on this message!
11. The following Windows messages confirm the successful connection: "…with this unit is complete," "Device added successfully"
12. Finally, the Giesemann software prompts: "Connected to TESZLA BT Interface/FUTURA……."
13. Please do not forget to disconnect after having finished your settings, before closing the program: