New AI support is terrible

I’m having a problem with the latest D5 Lite update. It broke all the rectangular lights from Rhino that now appears rotated 90 degrees.
The only place I can find a support is via an AI chat that says it is a commom problem and points me to a nonsensical solution. I never had this problem with Rhino before.
I cant find a way to talk to a real person or download a previous D5 Lite version. It is really frustrating and will make me loose a deadline.