Same Named Image not Showing even after delete and reupload

Hello Sir
for an example, I upload an image in WordPress media named Image_01 and it’s size 60KB and use it in a post

then I delete the image

from the post

from WordPress Media and

and from my hosting’s wp-content >> upload >> 2020 >> 08 >> Image_01
(size 60KB)

After that

I reupload the same-named image- Image_01 in WordPress media and it’s size 36KB now. and use the image in the same post

Here I noticed that

The 60KB’s Image is shown (I checked it’s properties after download and I see not decrease the image’s quality and size when download the image) but in media libary i see the image size is 36KB but not shown in website.

WHY??