Started a new game (dst - ps4 v.1.47), explored most of the map and when I went into a sinkhole to go into the caves it pops me out into a new map that I haven't explored yet. I can go back to my 'explored' map by going back into the sink whole. I essentially have access to 2 worlds. So far tried to get to the caves with 2 sinkholes but warps me to the new world. So I can't access the caves. Apparently each sinkhole matches with a corresponding sinkhole of the other world (like matching worm holes).
Only adjustments made to the world is no disease. Everything else is set to default
Nothing out of the ordinary