Yee light cube won’t connect to flow

I have bought 5 of the cubes and the app works perfectly fine but when I try and connect to flow on the app from my phone it won’t connect and says there is not a device.

It’s connected the rest of the app works with the phone so why won’t the music flow part connect?

Have emailed the company but only hd one reply and thought would see if the community can help?

Jon