I've been using Blue Iris V4 since 2017 and haven't had any issues that couldn't be solved with some messing around with settings/etc.
In any case, back in early February my HP laptop fried its' motherboard and I replaced it with another HP laptop; both running Win 10. After reinstalling Blue Iris on the new laptop all three of my cams are recognized and working again but with one strange problem.

The prob is that one camera window is constantly labeled "Paused" even though it is displaying a live image and can be triggered. I've messed with it for maybe a total of two hours over a period of weeks and nothing I've tried gets rid of the paused status.

Any hints will certainly be appreciated ... Thanks in advance!

Back to the basics....

- Have you tried right clicking the camera, and selecting 'Pause/Zero'?
- Have you disabled/enabled the camera?
- Last resort. Delete the camera, add it back, then set it back up.