i tried to update an image with the same filename but it shows the old image. i even cleared my browsers cache but still shows the old image. but when i change the filename it shows the correct image.
I think you did it right. It does sounds like some sort of cacheing issue. Try a different browser.
How about putting it back, and making a copy of it with a changed filename and post the URL so we can see if they're the same or not?
You can always use Shift-Refresh in the browser to override the local cache. Sometimes that solves that kind of problem.
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