After further testing this is the pattern. I hope somebody can offer some
insight
A1,2,3,4 work A5,6,7,8,9,10 do not
*B1-10 Work*
C1,2,3,4 work 5,6,7,8,9,10 do not
*D1,2,3,4,5,6,7,9,10 work* D8 does not
E1,2,3,4 work E5,6,7,8,9,10 do not
*F1-10 all work*
G1,2,3,4 work G5,6,7,8,9,10 do not
*H1-10 all work*
J1,2,3,4 work j5,6,7,8,9,10 do not
*K1-10 work*
Regards
Rick