Missing 'Menu bar' in Quartus 19.1 Pro on Linux platform

Hi, I would presume that the affect might be the version of the Ubuntu, but according to Intel's website the Ubuntu's version stated that it supports Quartus Pro 19.1. This issue might be caused by: 1) the OS itself, (latest is 14.04.6, but since older Quartus works in your OS so this may or may not be the case) 2) could be caused by corrupted installation file during download 3) could be a rare bug, would recommend Ubuntu 16.04 LTS as the End of Standard Support for this version is April 2021 compare to the Ubuntu 14.04.5 LTS/14.04.6 LTS which is April 2019 (Standard Support just Ended). Regards,