I've used my Nikon D3300 successfully in Digicam, it took some tinkering to get it to show up in digicam, but once there it easily connected right through OBS studio easily and I was able to stream successfully multiple times using this set-up. However the camera stopped displaying in Digicam. All other functions of the camera work fine, nothing else has changed. I've tried everything I can find online
uninstalled Digicam
deleted digicam folder remanence after uninstall
checked temp folders / program data folder
reinstalled Digicam's latest version
have the most updated firmware on camera
have the most updated Nikon webcam utility software and NX studio
uninstalled and reinstalled all of the above - and every combination of having/not having the Nikon software's
restarted both camera and PC between each attempt
all related programs were stopped via task manager between troubleshooting attempts and between installs
For whatever reason the camera just doesn't show up at all anymore.