Welcome to Kingdoms Of Camelot Strategy Guide Answers. What would you like to know?

There was a glitch in the game for awhile that was causing this problem. The fix,,then, was to refresh your screen right at the 1 secoond mark before the tranporting city's supply troops arrived at the other city. For me this worked everytime. This problem should have been cleared up on their latest update though, as mine no longer has the problem.