Me and my friend playing coop are having a similar issue. We just opened Halls of Secrets, and Zixzax won't recognize that we entered it. We have like, 6-7 inert stones on the bags and he'll just stand there..
"WELL.. AREN'T YOU GOING TO LEAP THROUGH? WHO KNOWS WHAT WONDERS AWAITS YOU!"
We tried killing him, but he instantly respawned. All that achieved was we losing 10k gold to have him talk to us again.
