I'm running into a problem with Maple where DotProduct seems to destroy the functions it assigns.

I ran a simple case, and it seemed to work just fine: (dotproductproblem.mw)

However, my code seems to follow the exact same logic but doesn't want to work? Code is a simple check that a bessel function solution of current density follows Maxwell's Equations. (Cylinder_AC_test2.mw)

Maple 11.

Has anyone encountered this problem before? Or know what's wrong in the code I'm running? (code attached)

View 9242_Cylinder_AC_test2.mw on MapleNet or Download 9242_Cylinder_AC_test2.mw
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View 9242_dotproductproblem.mw on MapleNet or Download 9242_dotproductproblem.mw
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