Starting this thread to collect cases where the v0 preview works, but the site looks different or breaks when deployed to Vercel. If you have encountered this, please reply with a chat URL or ID (the numbers/letters at the end of the URL). You do not need to make your chat public. If you can share…

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@amyegan Seeing a pattern where v0 previews look fine, but live Vercel deployments initiated via v0 result in broken CSS/layouts, even when deploying previously stable code. This points to a potential v0 build/deployment pipeline issue that might be affecting multiple users. [image] …

Thanks @shihpakhung-7440 . We had all of these reports individually, but I appreciate you recognizing the pattern and listing them together. I opened a new thread to collect related reports and moved your post here. Please post more links here if you see other cases of this

is it only me having the issue that code changes are not neither affecting the preview nor the deployment??? Is the hep experience with Vercel this horrible? how is actually helping?

Can you share screenshots to show us what you see?

[image] No changes either manual or by the ai are being rendered in the preview nor deployed when deploying. The code is there and changed and nothing is happening.

here is my site in preview mode [image] and what i see on production mode [image] I tried to add v0 to fix, but affter v0 fixed i still see the grey color in prview mode not the same in production mode. it’s weird.

In my case, the issue was caused by the way globals.css was being imported. The exported code was using: import "./globals.css"; However, I think it should be: import "./../styles/globals.css"; I had two different globals.css files, and the incorrect one was being imported. After correcting the…

Thanks for sharing this solution, @sizandyola . Everyone else, do your projects also have extra globals.css files that may require a modified import?

Hi @amyegan I’ve had several versions and never had any disparity between preview and published version until now. After making a simple text change, the formatting of the entire page (text and graphics) is messed up. What are the options to resolve this? Thanks! https://v0.app/chat/voyager-ai-lan…

Oh no! I thought this was fixed. Hadn’t seen it happen for a while. Thanks for sharing the chat. I remixed a copy on my own account and deployed, but the site and preview look the same to me. Can you send screenshots to show what doesn’t match? v0 Preview [Site in v0 preview] Published site […

Investigating: v0 preview doesn't match Vercel deployment

majamjohnsen2000-477 (Majamjoh) November 4, 2025, 12:37am 16

Same issue, this is how it should look vs the deplyment:

Topic		Replies	Views
Deployed Site Layout Crashed on Vercel – Works Fine in v0 Preview v0 nextjs , v0 , react	2	115	June 3, 2025
V0 big problem with deploying v0 v0	8	327	June 11, 2025
Deploy is different from V0 Preview v0	3	100	December 17, 2025
Deploying upgrade from v0 to Vercel is breaking v0	1	48	June 4, 2025
Export Issue: Design Mismatch in Exported Output v0 v0	2	24	November 21, 2025

Investigating: v0 preview doesn't match Vercel deployment

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