I have had similar problems before, but it has happened again using the ParticlesGPU library and trying to put the display render in the help files onto a second monitor.
This problem is mentioned in that thread https://discourse.vvvv.org/ and many others https://discourse.vvvv.org/.
I am wondering if there is an existing thread that discusses the various problems and solutions or workarounds faced when dragging renders to a second screen and subsequently experiencing a patch disfunction.
I dont think this was happening before I upgraded from Vista->7 but cant be sure if that was the case.
Has anyone summarised the extent and types of situations where this arises ?