Custom loading (suspense fallback) breaks Presentation preview

[mdillgen]

Is your feature request related to a problem? Please describe. If you work with a loading.tsx, as recommended by next.js, the preview/presentation mode no longer works and is cancelled due to an overlay timeout.

Describe the solution you'd like Basically I would like to use a loading.tsx which is the automatically used by it’Æs suspense boundary.

The loader is shown in the frontend, so no problem about that but the presentation mode breaks as soon as I try previewing that route.