I moved this to Technical Support until we can get more details.
It is quite possible for a different terrain map to be displayed, but the circumstances are very specific.
1) User has a terrain loaded (Tunisia).
2) Exits offline/online, then goes into a arena which has Italy loaded. Italy downloads and installs.
3) User does not see the Italy map in the clipboard, but does see the Italy field layout. The background is left from the previous Tunisia terrain due to a failure to load the Italy background.
Does that pretty much cover it?
That is the only way we can see having a different terrain map loaded from the terrain selected.
Need confirmation.