That all looks pretty good to me.can you post the output of the following command?
Codepactl list short sinks | pastebinitAlso can you make sure the volume in kodi isn't muted (dumb question but you never know).
Also a kodi debug log while playing something through the bluetooth speakers would be great
Codepastebinit /storage/.kodi/temp/kodi.log
Having same issue with new Rasp Pi wireless zero. Pacts list short sinks says suspended.
Since root folder is squashfs, cannot try this:
pulseaudio sink always suspended - Unix & Linux Stack Exchange