@clever_man, I found a bug with your notification helper on Oreo. Thanks for your work!
1.When I change songs rapidly, it prompts “Poweramp notification helper has stopped working”(maybe not exactly, I am a Chinese user)
2.When this prompted, the controls still working, but the notification stop updating. (It still can switch A song to B, but the animation stopped changing.)
3.After restart the server or re-open the application, it works again.
4.Even I didn't switch songs that fast, this bug still there, but in a very low frequency.
Maybe soon I won't need this anymore, but who knows :-P
Again, thank you for your effort to build this App, it helps.