Yes, I had similar issues with blocks not appearing and still being heard.  They would be invisible on the Helix floor screen.  After using a pc with HX Edit, the blocks were in fact still there.  I downgraded this mess back to 2.71 as I need a system that is more reliable.  I hope Line 6 figures their stuff out sooner than later.  This uniform code multi-platform mission is a disaster so far.