Volume adjust on Contrebombarde?

All…
I use an iPad for most of my computing and listening to Contrebombarde music. However, I’ve noticed I am unable to adjust the Contrebombarde “volume” control from it’s default position. I’ve tried using my finger, my iPencil etc, but nothing moves it. Oddly, my finger can control all the other adjustable settings in that section such as stop, start, reply etc, but not volume.
I’ve tried is using the Chrome browser as well to no avail.
It does however work fine when I use my MacBook laptop.
Does anyone know why, or how to get around this?
Thanks
Pat
I use an iPad for most of my computing and listening to Contrebombarde music. However, I’ve noticed I am unable to adjust the Contrebombarde “volume” control from it’s default position. I’ve tried using my finger, my iPencil etc, but nothing moves it. Oddly, my finger can control all the other adjustable settings in that section such as stop, start, reply etc, but not volume.
I’ve tried is using the Chrome browser as well to no avail.
It does however work fine when I use my MacBook laptop.
Does anyone know why, or how to get around this?
Thanks
Pat