blue print mod ignore research tree

And whats the bug here? Its a mod. Please call the mod author, not the game devs. 

Sandbox mode lets you build any building without needing the research.  So it makes sense that copying a room with sandbox mode would let you build the whole thing without research.

Try this: Go into sandbox mode.  Select a building you don't have research for.  Uncheck the 'build immediately' box down at the bottom.  Place the building.  Your dupes will build it if they have the materials, even though you haven't researched the tech.

when you copy any building in sand box( i did not test to copy from other advance world) world you can paste it in ANY word and dupes can make ti ignoring research tree in THAT world, for example you can copy hydrogen oxygen setup and paste it in new world and  dupes can make it if they have materials. and i ask if is not their mod to give me link for mod dev if they have it 

it is fix, nice fast dev work