I'm noticing that the Activity log is recording my name (site administrator) when members upload photos. How do I correct so it tracks the actual uploader?

I notice the same thing & have the same problem. In addition all photos uploaded prior to December 22, have been untagged to the people that were named. This is a serious problem when we have more than 5100 photos. PLEASE FIX THIS PROBLEM/ISSUE

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Thank you,