Using the notFound() function results in a flash effect

[christian-tchaikovsky]

When calling notFound() using the next-themes library, a flash effect occurs (You can see how the light theme changes to a dark one after restarting the page)

Exactly the same behavior appears when a hydration error occurs, but here is the expected result

Please tell me how normal is this behavior with notFound()? Has anyone encountered this? What is the reason for this behavior?

[Nitlix]

I can confirm encountering this, bumping this so this gets reviewed (;

[maxess3]

I have the same issue