What are you calling a cycle?Notice the end of discharge voltage decay drop off on cell 303.
It is quite different of the other cells and is indicative of a cell that has not had enough initial cycles where the cathode and anode capacity curves have not reached their final alignment. It may gain in AH's after a few cycles. It would surprise me they did not catch this and do more cycles to correct.
It is also possible the neg anode graphite print thickness was on the thin side so anode does not have the extra 15-20% graphite. This would be bad as not only will it produce less AH's of capacity but it will also age quicker than other cells. This would be a manufacturing process control screw up. (something that never happens in China )
These graphs are plotted with X axis in incremental AH's consumed, not the time increments that the zketech plots out.
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