Valid coin in one set not accepted in another set 0

[Weidel Legacy Collection]

I have a 1964-D dime in my set Weidel UNC Roosie Dimes that is not valid in my Weidel '64 Mint Set.  It used to be there and I discovered it was missing when adding a different coin to the Mint set.  The coin doesn't show as being available for the slot and, if I enter the cert number, it's rejected as not valid.

Can someone look into this?

Thanks!

[Ali E.]

On 7/5/2019 at 3:34 PM, Weidel Legacy Collection said:

I have a 1964-D dime in my set Weidel UNC Roosie Dimes that is not valid in my Weidel '64 Mint Set.  It used to be there and I discovered it was missing when adding a different coin to the Mint set.  The coin doesn't show as being available for the slot and, if I enter the cert number, it's rejected as not valid.

Can someone look into this?

Thanks!

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