Annoying rattle in Orbea Rise carbon frame

[mikegarf]

Has anyone had or got a rattle in their carbon Rise frame. I have an annoying one in the top tube between the shock mount and the seat post. There is definitely something in there. I've tried removing the fork to try and shake out what ever it is but it stays in that area. I wonder is it something left in there when the frame is manufactured or a flap of carbon loose inside?
Whatever it is it's not the motor or cables. Not the end of the world, just annoying.
Cheers.