Connecting earphones not working

Hi All, Hope you are well!

I have tried connecting three different types of music devices, the Galaxy Buds Pro, Sound Core Space One headphones and a JBL Go 3 speaker to my Forerunner 965 and it does not see the hardware at all. My son has the Forerunner 265 music and he can connect to all three. I am on the Beta Program software version 21.19. Any advice please? Will be so much appreciated!

Kind Regards,

Pieter

South Africa