On my side it looks like this:
$ tail -f /var/log/syslog
Jul 19 06:53:46 Lenovo-Z51-70 org.mate.panel.applet.MintMenuAppletFactory[1218]: 2019-07-19 06:53:45 (140104126379904) [INFO] Launched with arguments: /usr/lib/4kvideodownloader/4kvideodownloader-bin
Jul 19 06:53:46 Lenovo-Z51-70 org.mate.panel.applet.MintMenuAppletFactory[1218]: 2019-07-19 06:53:45 (140104126379904) [INFO] Using locale hu_HU
Jul 19 06:53:46 Lenovo-Z51-70 org.mate.panel.applet.MintMenuAppletFactory[1218]: 2019-07-19 06:53:45 (140104126379904) [INFO] SoftwareUpdate::Manager: appId=4kvideodownloader, appName=4K Video Downloader, appVersion=4.7.3.2742, appCast=https://www.4kdownload.com/static/main/app/appcast/videodownloader.xml
Jul 19 06:53:46 Lenovo-Z51-70 org.mate.panel.applet.MintMenuAppletFactory[1218]: ADVERTISEMENT: HU:hu
And it works flawlessly…
So why does it work on Mint, and does not onUbuntu Mate?