Hello there.
I don't know if this is a glitch, but when I went to the Savannah map to visit a friend, the map was totally changed, and I started to sink in the ground as I did once in a few other maps. I don't know if that was the update. So, when I went to the Savannah Stonefield Cave, everything was changed and the portal was underground. Then, I re-started and everything was okay.
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I also didn't take a screenshot, sorry. :I