Missing Ports unmapped with Bluetooth speaker

When I open Cubase while using my bluetooth speaker, it opens a window saying Missing Ports, listing my SRS XB10 speaker as unmapped. I can change unmapped to Speakers (Realtek(R) Audio) 1 and 2, but when I then proceed to use Cubase, the sound plays from the built-in pc speakers, and not the Bluetooth speaker.
Studio > Studio setup > VST audio system only lists “Generic Low Latency ASIO Driver”, which will result in the sound coming from the built-in speakers, and “Realtek ASIO” which will give me no sound at all.
F4 also only offers me Generic Low Latency ASIO Driver as audio device, and Speakers (Realtek(R) Audio) as Device Port.
The problem appears to have nothing to do with my speaker or my pc, since it works fine with other programs. Additionally I did at one point have Cubase sound from my Bluetooth speaker, but now I don’t, and I can’t seem to find any logic as to why it did work and now it doesn’t.