Mattermost on start fails with "write EPIPE"

Right after starting up, mattermost complains with a dialog message showing an internal error "write EPIPE" and clicking any button forces mattermost to close and not reopen.

Opening mattermost from a terminal fixes the issue as it have a tty I believe.

Reproduce the failure by launching Mattermost from the desktop and compare it with launching from a terminal, where the issue reports that it works. Start by tracing the startup path that produces the “write EPIPE” dialog and determine whether the application can open without a tty. Done means desktop startup no longer shows the error or closes the application.

Written by the indexing model from the issue text.