Using the latest beta-branch the superbuild fails during linking of ofchrenc.obj in project DCMTK.
ofchrenc.obj : error LNK2019: unresolved external symbol ucnv_convertEx_58 referenced in function "public: class OFCondition __cdecl OFCharacterEncoding::Implementation::convert
The reason for this seems to be that DCMTK_ENABLE_CHARSET_CONVERSION is defined inside bin\ep\src\DCMTK-build\config\include\dcmtk\config\osconfig.h. I suspect this has something to do with DCMTK_WITH_ICU being set to ON inside bin\ep\src\DCMTK\CMakeLists.txt.
This might happen when anaconda is installed, so it was finding the anacoda versions of binaries (ICU Conversion).
A possible solution would be to force the value to be OFF by using -DDCMTK_WITH_ICU:BOOL=OFF inside src\CMakeExternals\DCMTK.cmake