Commandline overwrites itself when the commands get too long

I’ve just solved this myself.

It was just some color escapes in the PS1 command prompt:

LTGREEN="\033[40;1;32m"
LTBLUE="\033[40;1;34m"
CLEAR="\033[0m"
LIGHT_GRAY="\033[40;1;33m"
export PS1="$LTGREEN\u$LTBLUE@\h:$LIGHT_GRAY\w$CLEAR ❯ "

The issue is that the color literals are not enclosed in brackets. Placing escaped brackets around them fixes the issue entirely:

LTGREEN="\[\033[40;1;32m\]"
LTBLUE="\[\033[40;1;34m\]"
CLEAR="\[\033[0m\]"
LIGHT_GRAY="\[\033[40;1;33m\]"
export PS1="$LTGREEN\u$LTBLUE@\h:$LIGHT_GRAY\w$CLEAR ❯ "

Hope this helps.