Hello,
Lately I installed KDE on top of Mint 19. Just now I noticed that when displaying folders under Dolphin, I cannot get it to show the widgets of directories and files like it used to always. Am I missing something? Thanks for your help
Regards
H. Stoellinger

Some more details would be helpful in figuring out what's going on and what can be done about it:

What exactly is it currently doing/displaying? (screenshots welcome)
What do you expect it to do?
How long has it been this way? (was it since a recent update to KDE or just since you installed KDE on Linux Mint and you are comparing with a previous install you had?)

Hello and thanks for a quick reply!
What am I trying to do?
- Just display the contents of a directory (the screenshots display 3 variations (i.e. Symbols, Compact, Details)
What I expect to see?
- the symbols (I called those "widgets" in my original post)
As I mentioned before, I installed KDE 5.12 on top of Mint 19 (since Mint has dropped their KDE-desktop).
I still have Mint 18.3-KDE on my laptop. Never noticed the same behaviour there.
Regards
H. Stoellinger
[img]file:///home/hs/Bilder/Screenshot_20180829_105852.png[/img]
[img]file:///home/hs/Bilder/Screenshot_20180829_105952_2.png[/img]
[img]file:///home/hs/Bilder/Screenshot_20180829_105952_3.png[/img]

Hello again,
I am not certain whether my "screen shots" actually got to you. In any case, I seem to have solved the problem bei specifying the right "Symbols" in Systems Settings - Workspace design.
Thanks
H. Stoellinger

I'm just seeing urls for locations in your home directory, which don't work when posted on the internet. You need to upload them to a 3rd-party image hosting service (such as imagur, dropbox, etc.) and then provide the url to the image on that service.

In any case, glad you were able to figure it out.

(p.s. I believe the common term for those "symbols" is "icon" - referring to the picture of a folder or of a piece of paper representing a directory or file, respectively)
(p.p.s. There are also settings for displaying previews of files and folders which will replace those icons with images of their contents; a slider at the bottom will allow you to adjust the sizes of the previews, and there are settings in Dolphin's settings dialog for configuring what kinds of things will be previewed)