Here are some facts/new/idk that I got from a friend. 

The stages and props that arrived are exactly the same from Super Show 3, but before setting the stages it all changed. They also said that some cargo were stolen and exchanged. Daesung's wings and some of the costumes got lost or are misplaced. There are 3 amazing speakers missing. Some wirings were out of place and grounded. Some speakers were not placed at the right space and the speakers sounds ill. It sounds horrible =w=. The mics were not numbered correctly. 

Some of the back up dancers' supplies were also lost. 

They had to use monitored scripts because of the change of agenda. 

There's a lot more but I don't remember the most >.<