unity-lens-applications "Recently used" miss several apps

Asked by Wartori

Several applications are not shown in unity-lens-applications "Recently used" and Home Lens "Applications", after use!

Is this a feature or bug?

Ubuntu 16.04.3 LTS 64 Bit + unity-lens-applications 7.1.0+16.04.20160701-0ubuntu1

Ubuntu CD 16.04.2 LTS 64 Bit (verified download)

Affected are:

Ubuntu Software (gnome-software)
dconf-editor (installed via gnome-software)
Disk Usage Analyzer
K3b (installed via gnome-software)

I've tried on two pc (fresh installation), also within the Ubuntu CD (Try Ubuntu) and figured out the same issue.

For normal (e.g. 14.04 LTS), all used applications should be shown in Home Lens "Applications" and Application Lens "Recently used" at first place, after they are used and closed.

What doesn't fix the issue:

- Change lens filter results

- System Settings - Clear Usage Data

- Change system language

- unity --reset

- unity --reset-icons

 - rm -r ~/.local/share/zeitgeist/
   zeitgeist-daemon --replace

- reinstall unity-lens-applications

- Fresh Ubuntu installation

What does temporarily work:

When i select "lock to launcher", then close the application and remove it from launcher, the application will appear like it should in the lenses.
When i have used "normal appearing" applications after that and then select one of the affected applications via "Recently used" or Home Lens "Applications", it will not be ranked in first place.
It stay on the same place before selection, until i do the "lock to launcher" procedure.

Sometimes it is not possible to lock gnome-software to the launcher.
Probably this is related to this bug https://bugs.launchpad.net/ubuntu/+source/unity/+bug/1572456 which also affects my installation.

It seems to me, that in 14.04 removing software-center leads to a similar problem within unity-lens-applications.
So i also tried to install software-center (not gnome-software).
Itself appeared normal within lenses and launcher, without any effect to this issue.

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Ubuntu unity-lens-applications Edit question
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