What worked for me is changing the device in the preview to a different device. I understand this is not a complete fix because you might want to see the preview on a specific device, but it was suitable for my purposes.

I am experiencing the same issue.

I have an intel based mac. It's a shame I paid over $2200 for a 2019 Macbook pro. And I chose a Macbook Pro over Windows specifically because I had an interest in developing Apple products. I am deeply saddened by this decision, and I do not have the money to spend to get an Apple silicon mac to develop for VisionOS. Less than 4 years of support for a device is not something that I would ever expect from Apple. There is a chicken and egg problem with getting people to develop apps for the Vision Pro. Developers do not want to develop for a device without a user base, and users do not want to get a device without applications made by developers. This move by Apple will certainly make this problem worse and seriously hinder the market for this device.