We're seeing some very unusual data across a handful of our reports where some visitors coming to our site are somehow appearing as multiple unique visitors and/or multiple visits (multiple meaning 20-30+ "visits" with 1 visit per 1 pageview) in the span of 1-3 hours, which is obviously impossible.
I've been able to confirm the issue from a few angles by collecting an internal user ID via an eVar (the website is behind a login, so we know who the visitors are) and we are seeing quite a few visitors that appear in analytics as multiple uniques but are linked to a single internal user ID (per visitor) in the eVar report with some having 40-60+ unique visitors per internal user id.
Digging into the issue further, the same traffic also shows very unusual data in the browsers report where one visitor will be linked to Google Chrome, Internet Explorer, and often times multiple versions of each all in the same time of just a few hours. The visitor domains report similarly shows extremely unusual data with these visitors appearing linked to 5-10+ different domains - many of which aren't even active domains.
We have bot filtering activated and I've tested the site with Charles, the Adobe Debugger and a number of other tools and everything I see looks correct in terms of the Visitor ID. The tools we have deployed via Adobe Launch are Analytics & Target (with A4T) with the Visitor ID service all configured with first-party CNAME's. I also validated the SDID's for A4T are populating correctly and they also appeared to be working fine.
Any idea what could be causing this and how we can resolve it?
