@yellow8 No, the issue persists.
I'm truly disappointed with the Xcode Previews team. It's not about the bugs, but their response to them. Every time I report a bug in Previews, they respond with a standard template asking for a diagnostic file. As you can see in this post, even when I provide detailed steps that reproduce the issue 100% of the time, they simply ignore them and continue to request the diagnostic file. They might even tell you it's a known issue, but still, they ask for a diagnostic file.
So, I've given up.