Looks like a display glitch in cpview and probably not a real underlying problem. If you convert some of those decimal values to hex and binary you can see they are bumping up against the maximum size/precision of the cpview display variable, or possibly have wrapped around backwards from the precision upper boundary FFFFFFFFFFFFFFFF:
18,446,744,073,709,212,468
FFFFFFFFFFFAD334
1111111111111111111111111111111111111111111110101101001100110100
18,446,744,073,708,827,132
FFFFFFFFFFF4F1FC
1111111111111111111111111111111111111111111101001111000111111100
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