Unreachable wormhole + strange default generation of volt-goats and tallbird nests

Hello Klei,recently i started a new world on dedicated server and found this(unreachable wormhole). I guess i should regenerate world 

Also i've been regenerating maps(always use default presets) for 3-4 days and was checking number of some prefabs with "c_countprefabs" command, so i noticed that sometimes maps lack of volt goats or tallbird nests.

Windows 7 (x64), DST dedicated server. I use only "Always on status" and "Geometric Placement" mods.
 

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