Comment 3 for bug 1873628

I had another machine running Lubuntu 18.04 latest. I could reproduce the same behaviour on it with the system's own mono version 4.6.2 (Debian 4.6.2.7+dfsg-1ubuntu1). After updating to latest Mono and installing mono-devel pakage the terminal showed no error however the fot menu lagged.

This system did to have the ttf fonts package installed.

Log attached.