[Elecraft] KPA500 assembly problem

[WM3M]

This is my first post here, I received my KPA500 kit this week.
I was hoping to get it running this weekend.  I am about halfway through the assembly.
I have found that the 10 wire ribbon cable, part # E850479, is made wrong.  The connectors on both ends should be the same but they are not.  Different pins are blocked on the connectors.  One will go on the board connectors ok but the other will not, with the wrong pin blocked.
As best I can tell the blocked part of the connector is solid and part of the connector and does not come out?  Reversing the connectors or taking them apart does not help since the wrong pin on one of the connectors is blocked.  I assume the connectors are made that way and there is no way to unblock the pin?
I guess I have to wait till Monday and contact support.  I don’t know of local source of that type of connector and I don’t have any.  Any ideas would be appreciated.
Thanks 73
Emory  WM3M