I can longer adjust volume using cell’s Volume buttons – Play-Fi Review

I want to make you aware that the updated Play-Fi app(s) that has been installed on my iPhone no longer allows me to adjust the volume when playing sound wirelessly through properly setup capable speakers. This has never been an issue since initially installing the app some time ago so I believe that this inability is related to a bug in the software update(s) recently. The work around requires clicking backwards a couple of clicks to the Play-Fi transmitting device’s music source to reveal the volume slider at the bottom of the display to slide left or right. This requires repeating if different music source or song selection requires sound level adjustment. Can you help?
Review by GoldenEyes&Ears on Play-Fi.