Horizontal Red lines

[Samgalax]

When I am writing under the words red lines coming and not dissappear. After restart dissappear. If start again to write again new lines coming. Its so annoying 

[smiley]

Just to check... above the keyboard in settings cog... you don't have 'auto spell checker enabled ?

The red lines sound like the spell checker highlighting mistakes.

If it isn't this, can you put a screen shot of the issue.

Smiley

[Samgalax]

This is after WhatsApp writing (

[Tourbillon De La Vie]

If you disable the accessibility option you have enabled does it still happen. Settings /accessibility /advanced settings

Does it happen in safe mode
https://www.samsung.com/uk/support/mobile-devices/how-to-start-my-galaxy-device-in-safe-mode/

[Samgalax]

Guys thank you so much for help ! I found the problem. Automated software update changes settings for Quillbot AI. And then was a nightmare! I send you the picture where to stop if its will happen with someone.
Anna