Yep, definitely something in vte 0.52 because downgrading to 0.48 by installing these packages from artful:-
gir1.2-vte-2.91_0.48.4-0ubuntu1_amd64.deb libvte-2.91-0_0.48.4-0ubuntu1_amd64.deb libvte-2.91-0-udeb_0.48.4-0ubuntu1_amd64.udeb libvte-2.91-common_0.48.4-0ubuntu1_all.deb
fixes the issue.
Yep, definitely something in vte 0.52 because downgrading to 0.48 by installing these packages from artful:-
gir1.2- vte-2.91_ 0.48.4- 0ubuntu1_ amd64.deb 2.91-0_ 0.48.4- 0ubuntu1_ amd64.deb 2.91-0- udeb_0. 48.4-0ubuntu1_ amd64.udeb 2.91-common_ 0.48.4- 0ubuntu1_ all.deb
libvte-
libvte-
libvte-
fixes the issue.