How to fix QImage: out of memory, returning null image error?

Question

Python

The essence of the program:
1. Downloads images from tape to VK, saves to a separate folder. Then the PyQT part.
2. For each photo in the folder: if the width of the photo is greater than X, then we reduce the photo to X (but the original is kept in the folder). The photo (processed) is inserted into the application window.
Suddenly this problem occurs:

QImage: out of memory, returning null image
createDIB: CreateDIBSection failed.

An error occurs at the moment when the pictures are inserted into the application. The application has been tested for quite a long time, that is, the error occurs in isolated cases.
What could be causing this error and how to fix it?

Answer 1

The problem turned out to be a large number of images in the application