Kerbal Space Program

In KSP versions before 1.7.1 autostruts in symmetry strutted parts not only per side, but across as well. Now this doesn't seem to work anymore, autostruts only strut parts per side, not across. That may result in breaking of many crafts built prior version 1.7.1 and Is that intentional for making robotic parts from DLC to work or this change at this point doesn't seem wise if you want to minimize update impact on the game. See attached pictures for example. is indeed a bug?