modem-manager-gui cannot proses USSD

[hikmah gumelar]

any function on modem-manager-gui working well but USSD cannot process,
when checking balance via USSD cannot process the loading process stuck.

ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: modem-manager-gui 0.0.18-3
ProcVersionSignature: Ubuntu 4.4.0-78.99-generic 4.4.62
Uname: Linux 4.4.0-78-generic x86_64
NonfreeKernelModules: wl
ApportVersion: 2.20.1-0ubuntu2.4
Architecture: amd64
CurrentDesktop: GNOME
Date: Mon May 29 22:11:05 2017
InstallationDate: Installed on 2017-04-08 (51 days ago)
InstallationMedia: Ubuntu-GNOME 16.04 LTS "Xenial Xerus" - Release amd64 (20160421)
ProcEnviron:
 TERM=xterm
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: modem-manager-gui
UpgradeStatus: No upgrade log present (probably fresh install)

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.