I don't like this solution, but no other correct solution works.
The point is that if there is a magic wall in the campaigns of Tribes of the East or if a mapmaker implements a magic wall, it will refer to the files of Tribes of the East, and the older ones (which are currently in use and newer in date than those in Tribes of the East) will conflict, and the display of the magic wall will become incorrect. Either the mod (magic wall fix) should be deleted immediately after completing the campaign, or there is a chance of encountering an incorrect display of the magic wall on someone's map.
Could you create a duplicate of the effects with a different name for the campaign, so as not to touch them in Tribes of the East?