Binning	Bins are incorrectly assigned, so that samples are incorrectly binned or, because of inconsistent A+ preferential amplification, fall out of the bin
Sample	Alleles are sized incorrectly, because of low fluorescence
Incorrect call	Alleles are incorrectly assigned
GENOTYPER not updated	Manual genotype change is performed, but software is not updated with the correction
Leak	The adjacent lane’s sample bleeds through to the lane during loading and is called when genotyped
Other	Pull-up peaks caused by spectral overlap or overfluorescence