It’s a bit hard to reproduce, but quite often when I am using VVVV the IOboxes go in to a funny mode where instead of displaying their contents they just show “IO”. Once this happens I’ve never been able to fix it except by restarting VVVV.

If you left click on the IOboxes they work OK, but as soon as you move the focus somewhere else they revert back to just “IO”.

halo ab.

this is a known problem. a memory leak somewhere down under the patch…for me it usually works to resize the patch to make all the ioboxes draw correctly again.