I think what's happening here is that v0 has a custom version of Popover to make it work properly in the preview iframe, and that's what you get when your project doesn't specify one, but then after you sync back it gets overridden with whichever one was in your project

If that's the case you may be able to unblock yourself by deleting the broken shadcn components in v0, which should then let your project use the fallback ones

I've passed this along to the v0 team to debug

Thank you! I wish I had see this post 5 days ago, I JUST figured it out and came back to the forum to share but you nailed it.

For now I've added the components/ui/ folder to my .gitignore so I can continue to develop locally.

Thank you @jacobparis !

thanks for following up with a workaround! I sent them another ping about this issue since that's a pretty unsustainable solution long term, which basically requires you to deploy from CLI if you want your custom components to work

Yup!! I’ve had to create custom components outside the ui folder which is no big deal but not opportune.