Deleting BUG

Sorry, but I’ll highlight this issue in a separate topic, because it’s a bug. Error. Product defect. This is important not for me, but for you. You are a seller, you need to sell a quality product. I want help you

I tested all possible options, and for any of them there are not deleted files.

The user of the site creates a place. Adds a photo to the place “123.JPG”. Published.
At the FTP, a file is created along with its relatives 150х150 300х300 900х900.
Then the user deletes the created place. The file “123.JPG” is deleted, but the relatives are not deleted!

I set up the WordPress so that 150×150 = 0x0, 300×300 = 0x0, 900×900 = 0x0.
But the file “123.JPG” is created and another one is cropped in size. And this circumcised one is not removed!

This is a bug. Anyone grandmother can create a script that kills the site in 1 day! And this is not a question of voting for future renewal. This is an urgent correction of errors. This is a paid product, you ask for money for it.
The product is good, but it’s a bug! As if I bought a TV, and it shows only half the screen!