I've been having a variety of issues with my Pulsar 1 and SFP4.0. The most annoying one is that I have a Master Verb connected to aux 1 on an STM 1632 mixer. The aux send goes to the left input on the reverb and the stereo outs of the reverb go to the aux returns. Works fine.
I then save my project, reopen it, and the reverb connections are gone! Every stinking time. It's like they aren't being saved with the project or something.
This is a confirmed bug with STM1632 I think.. Happens to me too and several others I presume.
But the problem is only with graphics, your aux should still work like before, although you can't see the wire.
Thanks for the replies. To be honest, I never tried using it in that state. I saw the missing wires in the routing window and figured they were disconnected. Would that explain why I get hourglasses when trying reconnect them? Seems I have to fight with the devices to get the crosshair cursor to reconnect the ins and outs.