Problem with fetching images, caching problem?

Every day my background image changes.
I used to get it from the hosting, then I changed my mind immediately upload it to the repository, against the presence of problems with the image if hosting falls.
But there is a problem that if I even update the image or delete and overwrite from the repository, I do everything but it still remains the same.
I clean the cache, I go in with incognito, the same image.
Cleaning the cache with cloudflare does not help.
I ask for help.

I’m not sure I understand what the problem is. Can you:

  1. Describe what you’re doing step-by-step
  2. Describe what you expect to happen
  3. Tell us what actually happens instead

Let us know and we’ll see what we can find.