Pollination with a tetraploid: unsuccesful. No pod formed. But for the sake of science I tried with another one.
With itself: the pod took. Let's see how far it goes.

The pod set with another diploid is still alive. I don't have many diploids to try with.

Ok, so hope your pod takes.

The newly set pods are well for now.
One is self pollination (I made it), three or four are bee pods, two are from a pollination from other two diploids and one.... is from a tetraploid (or maybe a bee came after me?)! I'm expecting this will die in short time, so I will see if the behaviour matches the ones that were aborted before.