Homestead IP stuck?

Homestead suddenly stopped being accessible yesterday, both for web and db. Hadn't changed a thing. After many destroys, provisions, config changes and reboots, I finally discovered the box was using 192.168.10.50 -- however, my Homestead.yaml specifies 192.168.10.10. It feels like somehow this is 'stuck' on nginx, but not sure how or why. Anyone run into this before?

Edit: and everything does work when accessing at .50.