Not Found error message appearing for some forge apps using Custom UI elements

At 1:30 p.m. UTC, we completed the process of fixing apps affected by the incident.
We don't observe any further impact on any production app.

Our team has identified a fix for this issue and is progressing through updating this for all impacted apps. Re-deploying your app in the meantime may still resolve this issue for your app immediately. We will provide further update when the rollout of the fix has been completed.

We are aware of an issue currently impacting some Forge apps where users may see a 'Not Found' error message when attempting to load the app. Re-deploying an app may resolve this issue. Our team is continuing to investigate with urgency and will provide an update when available.