Also you MUST use steel washers under the flywheel bolts when switching to ANY Aluminum flywheel, otherwise you may not fully seat the flywheel even though you get the "click" from your torque wrench, because the aluminum can gawl under the plain bolt and jam up - way before the flywheel is seated. This could cause your problem you are having if they didn't use HARDENED wahsers and now the flywheel has seated and become loose.
Also are axles seated properly? Were the c-clips replaced? Probably because of the broken mount you posted about in General. Any reason you didn't post that info here so we can help you? More fun to play games I guess. That bolt can be replaced with an automotive grade bolt. Take everything apart and replace bolt with a grade 8.8 or higher.