No luck with the Overlay unfortunately. The streaming overlay seems to load (albeit with a solid grey background blocking the top half of my screen :/ ), but no luck with the regular ingame overlay. Updated to the beta client, with no luck getting the overlay to load either. Both the game and the tracker are running at the same permission level, tried all of the troubleshooting steps posted.

So, no achievement and killstreak notifications, unfortunately, but the tracker is running on my second monitor, and I have Space Marine callouts acknowledging my carnage. That's a step in the right direction.

Probably a bit inappropriate to dig into this in this specific thread I'd imagine. I definitely appreciate the response times, and enthusiasm to help your users, though.