Memory leak and white monitor. Impossible to work.

I am using Premiere Pro 2026 (v 26.5.2) and facing a severe memory leak issue; additionally, a white screen appears on the monitor—indicating GPU management problems—without displaying any content.
I am in the final stages of editing a film—a project I’ve been working on for three years without issues like this. However, my nightmare began when I updated Premiere to version 26.3.2. I subsequently updated to 26.5.2, but the problem persisted.
I cannot downgrade because my project is complex and won't open in 2025 versions. Consequently, my last attempt was to import the project into a new file. It works fine initially, but shortly after, the memory leak begins: CPU usage constantly hovers between 80% and 90%, and the PC becomes sluggish and freezes, forcing me to close the program.
Upon reopening the project, the white screen appears with no image, even after audio processing is complete.
I notice that the user interface (UI) is placing an excessive load on both the GPU and CPU.
It is truly impossible to work with Premiere under these conditions.
I hope they release a more stable version—as stable as possible. I am forced to put the project on hold because of this.
By the way, I updated my Nvidia driver after a few attempts to work on the project while dealing with these issues.

My PC specs:

• 13th Gen Intel Core i7-13700K (3.40 GHz)
• RAM: 64.0 GB installed (63.8 GB usable)
• Graphics Card (GPU): NVIDIA GeForce RTX 3060 (12 GB VRAM) + Integrated Intel UHD Graphics 770
• Storage: 2.28 TB used out of a total of 4.10 TB
• Operating System: 64-bit Windows, x64-based