The screen blinks/flickers when using the keyboard

When you are going to use the keyboard, whether in inventory, cartography table, chat and others, the screen is blinking when you click to use or minimize it.

Steps to Reproduce:

1. Open a UI with a text box
2. Tap the text box and close it

Observed Results:
UI flickers/blinks when opening and closing the text box.

Expected Results:
The UI should not flicker/blink.