Updating to Passolo 2018 causes view issues

In Passolo 2011 a string starting with "\001CT" or "\001LP" or "\001TT",(indicates a tooltip format) showed properly.

In Passolo 2018 it does not. There used to be a way to change the font used in Passolo UI but I cannot find it in Passolo 2018, nor am I sure it would help.

Any idea why this happens?