We must have missed this thread, sorry for that... =/
The only things I can think of are either a problem with your internet connection failing to continue the loading sequence, or a similar problem being on the server's end...
Have you tried refreshing and if so, did this solve the problem for you? =)
When i played this game I found zombies would get stuck in random places and stop moving. So i would suggest moving one of your troops around, (preferably your strongest, since you will have no cover) and look for some zombies around your base. Flip the view when you look too, because they hide in some really tricky places sometimes!
