Weird Green Screen Effect on Video when it's Disabled

I need help.  I’ve tried support, I’ve restarted the app, I've tried in browser and in app, I've disabled everything that could effect video in the call and in my main general meeting settings.  My video does not look like the clear preview once I join the call.  Once I'm in the call, if I wave my hand or move...it’s a blurry green screen effect and my background (just normal, no virtual background) is dark and I look pulled forward and the quality is horrible.  I host calls all the time and people can see it.  It’s actually making them look that way too.  I’ve disable competing apps.  Only zoom is selected in my camera settings on my Mac Book Pro.  I have ruled out a computer issue, because I hosted a call on a different account and I was clear and normal looking.  So there is something in my work account, making this change.  Can someone PLEASE HELP?  I’ve disabled the HD video, the light adjustment, appearance, green screen….everything.