I think Darren has the answer. The sheets were 11 across by 12 cards tall. The team checklist sheets mailed out are 4x6, so fit 2 panels high perfectly, but 2 3/4 panels across. it's likely Topps printed all 11 columns repeating 3 of them. (The other side of the full 264 card press sheet probably had a different 3 columns repeated, so there are probably shortprints just in case anyone cares
)
A simple miscutting starting at the wrong edge, and there they are, a bunch of incorrect panels.