Client keyboard input is random text/symbols on host computer

Some staff I support using LogMeIn noticed, after they've connect to their LogMeIn host computer in the office, as they start typing in the log in screen OR on a word doc/etc., their host computer ends up showing random text/symbols. See image below. I have some guesses as to what's causing the error but is there something in the LogMeIn settings that's configurable to fix this?

I found things like this, but we don't have third party apps like  'Zone Alarm's ForceField'

• https://support.logmeininc.com/central/help/why-is-my-keyboard-input-displaying-as-random-characters

Others posts I found mentioned recommended running restarts on both host and the client, but that would be a temporary fix and the issue would come back. Any other recommendations/ideas to remedy this issue would be appreciated.