I have a bit of an issue with my code, I've done a simple mute/unmute music sprite.
Originally I made it a single sprite with multiple frames but even if I had animation set to STOP it would still animate strangely.
The other issues is once I separated them and placed them on top of each other that I could only click one button. I changed that and slightly overlapped them to see what is happening, it seems that despite being on the same layer, in the order being placed under and being set to invisible, the sound off was not clickable when sound on was placed over it.
Here is an example in pictures;
Inside the development environment
Selectable sound on area
Selectable sound off area