upnp plays all tracks twice

[Nutul]

I changed the render to openhome and queuing seems to be fine with gapless set on bubbleupnp.

Was it the queue presenting the tracks doubled, or just they got played twice, and only exactly twice?

They were presented once in the right sequence but each one played twice. Repeat was off on bubbleupnp though.

Urgh... I would go for a bug in the control_point as @the_bertrum already suggested...
Good that you can keep gapless; just changing the renderer.