available updates in System Overview do not show as updates in Software Package Updates

I have webmin/virtualmin running on Debian Jessie/Raspberry Pi3.
Never had any issue but since last week.

My System Overview shows 13 possible updates. When I click to move to Software Package Updates in order to install, there is nothing there.
When I then click “Refresh Available Packages” it again shows 13 available updates to disappear on “return to package list”…

Any thoughts?

Found it:
Commandline check for upgradable packages:
apt-show-versions | grep upgradeable

It then shows a list with packages that are ready for upgrade

Manually upgrade
apt-get upgrade xxxxx [-y]