Issue WIth App / Unable to preload CSS

💬 App Building
1
  1. My goal:
    Edit / View an App i have built
  2. Issue:
    Getting an Error:
    Error ID: b0f20ce7da8c405a908657624b83274bUnable to preload CSS for https://retool-edge.com/assets_vjs/index-Cv9INJgr.css
  3. Steps I've taken to troubleshoot:
    None
  4. Additional info: (Cloud or Self-hosted, Screenshots)
    Retool Cloud

Hello i cannot open an App, i have not defined any custom CSS therefore the error message is a bit confusing,

Please help, thanks!

Screenshot 2025-11-18 at 14.31.17
Screenshot 2025-11-18 at 14.31.17871×641 21.5 KB

3

Hey there @Martin_M

There are several posts on the forum around this right now, and this is most likely due to the global cloudflare outage.

Linking this post to this other one here:

2 Likes
4

Hi all, this should be resolved along with the Cloudflare outage, let us know if there are any other issues!