Why won't my iPhone recognize my Earbuds after update?

I updated my iPhone this week and now my iPhone doesn’t recognise my earbuds even though it says connected in Bluetooth settings. The earbuds keep saying ready to connect. I’m holding my earbud case very close to my iPhone. I’ve tried turning off my iPhone, forget the device; redownloading the Bose app; turning Bluetooth off and back on. Is there a security change in the latest update? I also got thrown out of connection with my golf apps that are never a problem.

[Re-Titled by Moderator]