Thanks for the bug report @OzzieMonkey! Have you been using the latest dev build? Please try that one and tell me if it happens again
(I did start a new game on Android a few days ago, now I'm on Blood Island, and I didn't encounter this problem)
A little update on the ScummVM dev side: after this work was done (and there's still a Pull Request pending for Full Throttle) they asked me to go and properly decompile the original Digital iMUSE; this is gonna take A LOT. Luckily half the decompilation work was already done in 2008, but still, the hard part will be the integration of this old Windows based code with the current ScummVM one.
I'm hoping they'll be making a ScummVM release with the current fixes (which are good, but still a temporary viable solution), otherwise I'll see you guys in several months haha
EDIT: Next time, don't hesistate to send me a private message for other CMI-iMUSE related bug reports, so I won't miss it!