Does not start in Ubuntu 18.04, a white screen is displayed.
ubuntu-mate, lubuntu 18.04 64bit
Phone version: Zoiper5 5.2.16 for Linux 64bit
$zoiper5
APP Started! [ PID: 25003 ]
APP Started! [ PID: 25014 ]
APP Started! [ PID: 25042 ]
[0528/075535.918891:ERROR:sandbox_linux.cc(375)] InitializeSandbox() called with multiple threads in process gpu-process.
[0528/075536.043360:ERROR:service_manager_context.cc(252)] Attempting to run unsupported native service: /usr/local/applications/Zoiper5/content_renderer.service
After press CTRL+C
^CAPP Exit [ PID: 25003 ]
Segmentation fault
screenshot