I played on my kindle, it seemed to freeze for a beat every so often when I was exploring & I couldn't get the portal to work after I was done the 1st time, I clicked quest, it didn't do anything so I quit on the kindle & switched to the PC, didn't have any problems switching tabs on the PC but did have the lags during Explore. I clicked the button up to 3 times expecting it to move 3 spaces as usual & instead it just sat there & when it did move it only went 1 space, it would be fine for a bit & then there was the lag again. This happened for all 4 or 5 rounds, I switched pets between most of the rounds.