I experienced this as well while auditioning the presets. It made me nearly jump out of my studio.
It is really annoying! Sometimes the noise is constant, sometimes it dies away, even with the output on my Motu 828mk turned down -30dB it is loud!
I have just tried to reproduce it, so I can give you a sequence of steps to follow, but to no avail.
I would have played with the previous preset and then the RJ_Phaser_Pad. I usually have the expanded version of the Jupiter-8V window open on the effects page and I nearly always turn the reverb level to zero. I had also altered the phaser level. On the second occasion it played ok for a minute or two, then when I turned the phaser level down to zero...
I hate these intermittent issues, they are hard to explain in a way that allows support to reproduce them.
I do hope Arturia can come up with a fix, I really don't expect this kind of problem at version 1.1.1!
iMac 2.66GHz Intel Core 2 Duo, 4 GB RAM; Motu 828mkII; Mackie Control Universal; Logic Pro 9