SD's json baker preset doesn't store hi / low suffix values, on the other hand, it is possible to add it manually to the json file, name-suffix-high: "_hp" and name-suffix-low: "_lp"
The Python API won't load cleanly in python environments where cffi package is not present (Maya, Blender, etc.).
In DynamicAttributes and PixelProcessor functions a number of operations has too conservative type checking making them only work for scalar floats when they should work with any vector size of floats.
The engine plugins are dead symlinks on OSX and Linux. Windows works correctly though.