One additional cooment about Python plugin error. I’ve seen this error several times in search output without solution.
assertion failed: !generatedwrappedtypes.contains(typeregistryname) [file:d:/build/++ue4/sync/engine/plugins/experimental/pythonscriptplugin/source/pythonscriptplugin/private/pywrappertyperegistry.cpp] [line: 1455]
The cause in my case was renaming of classes. I had CharacterAttributes which was renamed to CharacterAttributesComponent and I created new structure with name CharacterAttributes. In that case for CharacterAttributesComponent python plugin crated 2 wrappers (CharacterAttributesComponent, CharacterAttributes (!old name)) and when new CharacterAttributes was handled, row with that name was exist.
So for my case simple removing from \Config\DefaultEngine.ini solved the issue:
+ClassRedirects = (OldName="/Script/Tactical.CharacterAttributes",NewName="/Script/Tactical.CharacterAttributesComponent")