Issue with random characters dissapearing.
 

I was wondering if anyone could recreate this bug. Using LibreOffice Impress on a screen connected to a displaylink adapter through display port. When i type in certain letter on the presentation and then move away from the box I am in some of the letters disappear. This is mainly the W ? a 2 3 characters. When used on the laptop screen that the adapter is plugged into these letters do not disappear.

Very strange bug but would like to see if anyone else can recreate it.

Thanks

Chris