mate-terminal not displaying due to vte3 problem

[Kevin Oberman]

Some time between Sept. 19 and today, mate-terminal fails to display any
text due to an error sent by vte3. I get the following error seven times
when mate-terminal starts:
(mate-terminal:71607): VTE-CRITICAL **: 19:57:20.287: void
vte_terminal_match_set_cursor_type(VteTerminal *, int, GdkCursorType):
assertion 'tag >= 0' failed

I last started mate on Sept. 20 and it worked fine. Today I rebooted my
system after an ugly failure that required a hard power cycle when it would
not shut down, so the problem could have started with some port update any
time between Sept. 19 at 10:00 UTC and this morning at 10:00 UTC. I update
my ports tree every morning at 10:00 UTC and then install updates as time
permits. I have 25 ports that are dependencies of mate-terminal that were
updated during that period.

It could also have been a corruption due to the hardware issue triggered by
a USB disk failure. Reinstalling the port, vte3, and gdk-pixbuf3 did not
help.

Any clues that might help me track this down would be greatly appreciated!
Kevin Oberman, Part time kid herder and retired Network Engineer
E-mail: rkoberman at gmail.com
PGP Fingerprint: D03FB98AFA78E3B78C1694B318AB39EF1B055683