We have noticed that in Zebra Wildbook, the matching is not matching with all of the zebras in the data base. It seems that when a new zebra photo is uploaded, it only matches agains zebra photos that have been uploaded in the recent year. Any zebras that were photographed before around 2015 are not being matched. If I match a zebra from before 2015 it is only matching against older zebras as well. It seems that there is some form of disconnect between the two sets of data. Is there a way to merge the data so that we get more accurate results? We are noticing this with OPC Zebras that have been pre uploaded to the data base. The individual will be in the software but if we upload a new photo of the same individual to Wildbook it is not matched and says that it is an unidentified individual.