[Dx4win] Upload to LOTW

[Mark Endorf]

I upload to LOTW perhaps twice a week. It is usually anywhere from 20 to 100
QSO's each time I do. Last week I was surprised to see it generate an ADIF
file containing 11,000 QSO's. (Mostly old).
Any explanations on how this could have happened? Of course they all turned
out to be duplicate records. I was not messing with flags or filters. No
harm done, but just curious as to what happened?
73
Mark WA0MHJ