I'm having an issue that seemingly pops up at random, and I'm not having any luck searching for answers about this behavior.

Any time I hit any of the arrow keys on my keyboard, the viewport tumbles in that given direction (while continuing to play/stop/reverse as directed). It's driving me out of my mind, and it seems to activate randomly. I assume I'm turning it on with some hotkey I'm accidentally hitting, but I can't find any information about it…

thoughts?

Can you reproduce it reliably with some particular set of steps? I've hit this 3 times before, but wasn't able to figure out how to reproduce it when I restarted Houdini.

Also, what version and build of Houdini are you using? What OS and OS version are you using? Lastly, what graphics card and graphics driver version are you using?

I'm having this same issue. Seems like restarting Houdini is the only way, for now.