Hi Matjaž. Sorry, we weren't able to respond sooner.
Pro/Enterprise users can contact support directly through the app or email (
support@growthbook.io). That's the best avenue for support. This is a community forum, and while we try to answer all questions, we can't always
The most common cause of SRM with redirect experiments is that the redirect occurs before the tracking callback can fire, which is why you see fewer users in the v3 variant. How are you doing the redirect? (Either share here or for a quicker response with support)