Tesla Motors Club

In early July my 2020 model 3 stopped recognizing other vehicles and traffic signals. As a result, FSD mode and cruise control have also stopped working. Sentry mode was disabled as well. I contacted Tesla for service and after some back and forth they said that the car should fix itself. It did for about 2 days and then stopped working again. I called Tesla again and they scheduled a home visit but then said it needed to come to their dealership for repair. A few days before the service appointment everything was working again so I waited until the night before to be sure and canceled the appointment. That evening software update 2020.28.6 uploaded and everything stopped working again. I contacted Tesla again and they set a service date at the dealership. I took the car in and they kept it for a few days and then called me to pick it up. They reported that the problems were not fixed but a firmware update would be coming soon that should fix everything. That was 2 weeks ago and there's been no new update and the problems persist. I've contacted Tesla twice and received no response. This is getting frustrating because I'm paying for features I can't use. Has anyone else had similar problems and if so, was there a fix?