Steps

Open Kakoune with most any file in the Termux app, even when running Kakoune in Fedora linux remotely and accessing it through ssh.

Outcome

Random lines are highlighted in white, which comes and goes when the screen updates because of a keyboard press or any other touch update.

Expected

No random highlighting in white, see example below of running Fedora's kakoune system package in ssh from my Android 6 tablet.

I'm able to reproduce on another device running Android 11, both running the Termux package locally or the Fedora package remotely through ssh.