fix problem with blocks hidden after running empty start block
fix problem with blocks hidden after running empty start block

Hrishi1999/musicblocks,eohomegrownapps/musicblocks,walterbender/musicblocks,walterbender/musicblocks,Hrishi1999/musicblocks,eohomegrownapps/musicblocks,eohomegrownapps/musicblocks,Hrishi1999/musicblocks,walterbender/musicblocks