Screen image strange clolors all was working fine before

I am having an issue since two days.

Everything was working fine nothing changed since 4 months.
Even if i put back old fies saved as working One moth ago do not work.

Now graphics are strange if i put max backlight all works fine upto some minutes , and then all become stucked fixed image nothing can be used . I need to reboot from power.

If i give maximum backlight power graphics are good if low power on backlight strange teared colors and image trembling.

For backlight i use pin 48 of esp32S3.

I dont see the link between backlight and graphics.

I hope my answer to your other post of the same issue leads you to solve this problem. (LV_MEM_CUSTOM/LV_MEM_SIZE)