That reversal of the cladding layers is exactly what you should see on a clad coin with a clip.
Twhen the blank is punched from the strip it results in "smearing" of the clad layers on the edge of the blank and the edge of the hole. This smearing will be in opposite directions. On the edge of the hole the top clad layer will be smeared downward and on the blank the bottom layer will be smeared upward. Now when the next blank is punched out overlapping the hole from the previous punch creating a clipped blank, the edge of the blank will be smear upward as on the previous one. But in the clip area the smearing will be downward as seen in the original hole.
The OP's coin looks like it had a very tiny edge clip. Large enough to cause the rim weakness, but so small that the planchet expanded enough to make contact with the reeded collar so the reeds show but weaker than normal.