Discovery Image did not show

Hi, in developers Dashboard of my extension, I have uploaded a Discovery Image some days before.
But until today, if I search the extension on twitch, on the search results I get only the Logo shown, not the discovery Image.
What can be the reason for this?
On developers dashboard I see the uploaded discovery image.

(current status of the Extension is Local Test)

If you change anything within an extension including logos and discovery images you need to resubmit your extension for review.

Im not in the state of review. Just in Local Test.
The uploaded logo is displayed.
But the discovery image not.

I believe art “uploads” when you move from local test up at least one state

Okay, thanks. You are right. I changet to Hosted Test and back to local test.
Now the picture is displayed.