Bluetooth headphones sporadically stop working for unknown causes

Grado lab bluetooth (wireless) headphones sporadically stop working for unknown reasons. Work fine for a few weeks, then, all of a sudden don’t. After connecting a separate pair of grado wired headphones it is found that sound is always working. I conclude the problem is with bluetooth.
Only sure fix is a system restart.

I try start-stop of bluetooth services through yast gui services.
I try connect-disconnect of headphones in bluetooth blueman appelet.
I try remove then add headphones in bluetooth blueman appelet.
I make sure headphones are active in pulse audio volume control → output devices → Grado

This is annoyance, making for reboots. Any suggested solutions?
thanks, tom kosvic

Does power cycling the BT headset solve the issue?

Anything visible in the journal if the problem happens?

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