crazy application memory error

[AlmenPils]

Description

The problem occurs in Windows 10 Home, during use.
The problem is restoring incorrect and incomplete graphic data after using the 'undo' or 'redo' option. It looks as if all the data stored in the cache is mixed up, then when you use the 'undo' option, random bits of data are restored.

Additional details.
During use, I imported two png images into the project.
My usage time was more than an hour and I changed my design many times during that time (drawing and erasing lines). I suspect that the error is caused by the excess of stored data in the cache and poor management of it by applications

Steps to Reproduce

1. Use time more than an hour
2. multiple design changes. drawing and erasing drawings

Expected Behavior

restoring random fragments of the project

Screenshots, Video & Crash Logs

Okno 13-12-2022 16-03-12.zip

OpenToonz Version

1.6

OpenToonz Version Information

bulit Apr 4 2022

Operating System

Windows

GPU

NVIDIA

Graphics Tablet

Huion