AiMP player keeps auto starting

[Tafflad]

I have AiMP as the MP3 player on my S20
It plays any of my audio files fine.

However during the day I use a Bluetooth headset to make/receive calls. As soon as I finish a call, the phone starts playing one of my audio files ...... this is annoying. On occasion noticed an Hr later its still playing audio.
I have to go to AiMP app and stop play,

Is there a way to turn off this auto-play

 

[Post Nine]

do you have any bixby routines enabled?
try clearing cache and data or try uninstalling AiMP and reinstall it

 

[Tafflad]

Bixby is installed (came as standard) but I don't use.
Seems if I kill BT link to headset then autoplay does not happen, i.e does not play direct to phone speaker.