PoCo X3 volume question

[DXP55]

I have had my X3 since release and it's been fine - Just lately I have found the volume buttons on top right side have reversed themselves. When changing the volume it showed a icon on top right of screen with a blue line - not any more -it's now a grey line and to up the volume I have to press bottom of two buttons to increase volume and top buttom decreases volume. Total reverse from normal.
The only thing that has been added to phone is a My Phonak app so I can set all setting to my hearing aids.
Whether this is the culprit or not I don't know but thought I would ask before starting to mess about with hearing aid app.

 

[DXP55]

Sorted now - The volume rocker is working as normal - it's just the change of colour that fooled me -gone from blue to white/grey and wasn't sure which colour was the moving volume level.

It was also the Phonak app and hearing aids - They were set to my hearing test but I can also add people or places to the list and one was the wife where it needed less volume so making a call was different than the basic automatic setting that was programmed in.
A few tweeks and it seems ok.