It works for some but not others, I haven’t been able to determine a reason for one or the other, which is why I labeled it “Limited.” I haven’t removed it as a capability because some have reported that it works for them, but I’d say that’s about 20% of people. I tried for a while to make it work for those that wanted it, but SmartThings only officially supports video from their specific cameras, and they do not have any video developer documentation for custom device handlers like this.
My recommendation has always been to view video, take snapshots, position cameras, view recorded alerts, etc., from the Blue Iris app, and use BI Fusion to integrate SmartThings and Blue Iris to trigger recording, change profiles, etc. The developer’s app works extremely well, and will always be way ahead of what I can write on my own time.
I like the idea of using one app to do everything, but there’s no way to have one app do everything really well. Even for viewing supported cameras in SmartThings you have to open the app and wait for the devices page to load (which is slow), open the device’s page, then tap the video and wait for the stream to start. The Blue Iris app is way faster.
Sorry that aspect of BI Fusion doesn’t work for you (it doesn’t for me either), I hope the rest is though. If not, please let me know.