Camera not working with Zoom

[SPJ47]

Not sure if this is the right place to ask this - apologies if not.

I have a newish USB camera attached to my Dell PC which I have been able to use for weeks with Zoom with no problems. Suddenly today it is not working.  I can see everyone in the meeting they cannot see me. I am just a black square.

Yes I have clicked on the small video symbol so the red line is not there. My camera responds to Zoom when I do this as the blue light on the camera comes on.

I have checked that the camera works via the app in windows 10 - it does.
I have turned off my PC and rebooted/ changed USB port - no improvement
I have uninstalled and reinstalled Zoom - no joy.
I have checked my PC privacy settings and yes, Zoom is shown as one of the apps that can access my camera.
I have checked my settings and I only have one camera - “USB camera” and that is shown as the one Zoom is finding.
I have checked for updated drivers and windows tells me my driver is fine.
I have tried with my OH’s camera and that’s not working either, even though it has its red light on.

I have now run out of ideas. It is frustrating that the camera  been working fine for weeks and now suddenly it’s not.

I'd be grateful for any help/suggestions. Thanks

[Donotknow]

I am having the same problem.  Thou I've been told my video glitches  turns into 'snow"  and goes in and out.  I am not a member.  I am only on zoom at the most 3 times a year.  All are with my Doctor.  I now have to drive to see her, due to this.   Now there is another problem.  I have a doctor that is 100 miles from me. We tried to do a zoom appointment but it failed.  It will cost me to much time/money to go see that Doctor.  I want to know if you were able to get your problem fixed.  I can not get anyone to help me.  I am not going to upgrade my membership. Since it would be a waste of my money.  Now if I was on zoom a lot I would.  Thank you for any help you can give me.  Since my zoom meetings are for medical reasons. 

[RossK]

check the camera with another app like google meet, skype, or whatever you like 

[Donotknow]

 Thank you for the repl.  If my camera (it is a webcam) works for one of those things (going to do it on Facebook).  What should I do then?  What should I do if it does not work?  I do not know a lot about computers.   I use Zoom on my computer which is a desk top. Not on my phone, I do not have a  lap top computer.  In a few weeks or less I may be having a Doctors appointment that I will have on Zoom  As in the Doctor will use Zoom to talk with me.  It will be about a surgery I may have.  Thank you. 

[Donotknow]

I checked my camera on FB and it worked without any issues.   So what should I do now.. I will have a Doctors appointment coming up soon. it is a just a talking type matter.. and they use Zoom.