Hi John thanks for your reply to my query it got me going in the right direction.
I found on the Yamaha P-125 the G5 and G#5 keys turn the Audio Loop Back on and off.
Pressing the G5 key to turn Audio Loop Back off did the trick.
Now the metronome icons work as they should.
So if anyone else is having this problem with the Yamaha P-125 and probably other Yamaha keyboards
this is the solution.
I have been stump by this for over two days and now finally solved. Woohoo!!!
Thanks to everyone for your help.
01John01's post in How to stop metronome being recorded was marked as the answer