Niagara crashes when try to Find BP Class via C++

Sorry for my bad English =(

Editor won’t work, if I create a C++ class in which I try load UDataTable with reference to Blueprint Class which contains Niaraga Component.
If I dont use Constructor - all fines, all works. This issue already known and bugreport created (UE-74988).

But for start work code in Editor need find config file of Niagara plugin (Niagara.uplugin) and set load to PreDefault.
Then Editor will load fine, without errors.

BUT. When I try build game - build fine, but game won’t start and show error “cannot find file” (and dont show what file).

So. Can anyone tell me how to get around this problem?