Cant delete images

Hello, I've subscribed to X premium refently and I am playing with image generation with Grok.

Unfortunately I cannot delete the images I generated. When I click on the three dots on the top right of the image, I am only presented with saving, posting and copying the image but not deleting. The prompts I used to generate the images are already deleted, but it didnt delete the images.

I've contacted X support and was tols the clear the cookies/cache etc but no solution.