Disconnected and restarted earphones and FP many times. FP found only my Laptop and a LG Speaker but not the earphones. Yesterday one of the earphones was working and connecting via bluetooth. Today no more.
Sometimes you have to tell both the phone and the earphones to forget older connections and re-establish, switching the phone etc. on and off does not do that.
Thank you all for your replies - found the solution in the “Pairing/Unparing” section. It was because the earbuds where existing on many devices and also active - that FP did not find them.
Mystery solved Thank you very much. Now I can hear music again