So about 2 months ago I upgraded my work laptop and my home workstation from F25 to 26. The laptop rolled great.. teh desktop however lost all desktop and dolphin icons except for specials like for Ansible, SpiderOak, Steam, etc.
I've been fighting this nonsense for a while now and have hit roadblock after roadblock.  I am a KDE Plasma user.. and I have not attempted Gnome, nor any other DE just to see what'd happen... yet. I absolutely do NOT want to ditch KDE since it works fantastically on my laptop.  And while I've finally gotten my panel icons stable, dolphin continues to throw fits.

Here's a copy/paste of what Dolphin spits out when run from Konsole:

 22:53:42  skeer@sputnik  ~  ⬡ system 
$ dolphin           
Invalid Context= "stock" line for icon theme:  "/usr/share/icons/ubuntu-mono-dark/stock/16/"
Invalid Context= "stock" line for icon theme:  "/usr/share/icons/ubuntu-mono-dark/stock/22/"
Invalid Context= "stock" line for icon theme:  "/usr/share/icons/ubuntu-mono-dark/stock/24/"
Invalid Context= "stock" line for icon theme:  "/usr/share/icons/ubuntu-mono-dark/stock/32/"
Invalid Context= "stock" line for icon theme:  "/usr/share/icons/ubuntu-mono-dark/stock/48/"
Invalid Context= "stock" line for icon theme:  "/usr/share/icons/ubuntu-mono-dark/stock/64/"
Invalid Context= "stock" line for icon theme:  "/usr/share/icons/ubuntu-mono-dark/stock/128/"
Icon theme "elementary" not found.
Invalid Context= "Apps" line for icon theme:  "/usr/share/icons/Mint-X/apps/16/"
Invalid Context= "Mimetypes" line for icon theme:  "/usr/share/icons/Mint-X/mimetypes/16/"
Invalid Context= "Apps" line for icon theme:  "/usr/share/icons/Mint-X/apps/22/"
Invalid Context= "Mimetypes" line for icon theme:  "/usr/share/icons/Mint-X/mimetypes/22/"
Invalid Context= "Apps" line for icon theme:  "/usr/share/icons/Mint-X/apps/24/"
Invalid Context= "Mimetypes" line for icon theme:  "/usr/share/icons/Mint-X/mimetypes/24/"
Invalid Context= "Apps" line for icon theme:  "/usr/share/icons/Mint-X/apps/32/"
Invalid Context= "Mimetypes" line for icon theme:  "/usr/share/icons/Mint-X/mimetypes/32/"
Invalid Context= "Apps" line for icon theme:  "/usr/share/icons/Mint-X/apps/48/"
Invalid Context= "Mimetypes" line for icon theme:  "/usr/share/icons/Mint-X/mimetypes/48/"
Invalid Context= "Apps" line for icon theme:  "/usr/share/icons/Mint-X/apps/96/"
Invalid Context= "Mimetypes" line for icon theme:  "/usr/share/icons/Mint-X/mimetypes/96/"
Invalid Context= "Apps" line for icon theme:  "/usr/share/icons/Mint-X/apps/scalable/"
Invalid Context= "Mimetypes" line for icon theme:  "/usr/share/icons/Mint-X/mimetypes/scalable/"
Icon theme "elementary" not found.
Cannot creat accessible child interface for object:  PlacesView(0x563e0cc227b0)  index:  18
QPixmap::scaled: Pixmap is a null pixmap
QPixmap::scaled: Pixmap is a null pixmap
QPixmap::scaled: Pixmap is a null pixmap
QPixmap::scaled: Pixmap is a null pixmap
QPixmap::scaled: Pixmap is a null pixmap
QPixmap::scaled: Pixmap is a null pixmap
QPixmap::scaled: Pixmap is a null pixmap
QPixmap::scaled: Pixmap is a null pixmap
QPixmap::scaled: Pixmap is a null pixmap
QPixmap::scaled: Pixmap is a null pixmap
QPixmap::scaled: Pixmap is a null pixmap
QPixmap::scaled: Pixmap is a null pixmap
QPainter::begin: Paint device returned engine == 0, type: 2
QPixmap::scaled: Pixmap is a null pixmap
QPixmap::scaled: Pixmap is a null pixmap
QPixmap::scaled: Pixmap is a null pixmap
QPainter::begin: Paint device returned engine == 0, type: 2
QPixmap::scaled: Pixmap is a null pixmap
QPixmap::scaled: Pixmap is a null pixmap
QPixmap::scaled: Pixmap is a null pixmap
QPixmap::scaled: Pixmap is a null pixmap
QPixmap::scaled: Pixmap is a null pixmap
QPixmap::scaled: Pixmap is a null pixmap
QPixmap::scaled: Pixmap is a null pixmap
QPixmap::scaled: Pixmap is a null pixmap
QPixmap::scaled: Pixmap is a null pixmap
QPixmap::scaled: Pixmap is a null pixmap
QPixmap::scaled: Pixmap is a null pixmap
QPixmap::scaled: Pixmap is a null pixmap
QPixmap::scaled: Pixmap is a null pixmap
QPixmap::scaled: Pixmap is a null pixmap
QPixmap::scaled: Pixmap is a null pixmap
QPixmap::scaled: Pixmap is a null pixmap
QPixmap::scaled: Pixmap is a null pixmap
QPixmap::scaled: Pixmap is a null pixmap
QPixmap::scaled: Pixmap is a null pixmap
QPixmap::scaled: Pixmap is a null pixmap
QPixmap::scaled: Pixmap is a null pixmap
QPixmap::scaled: Pixmap is a null pixmap
QPixmap::scaled: Pixmap is a null pixmap
QPixmap::scaled: Pixmap is a null pixmap
QPixmap::scaled: Pixmap is a null pixmap
QPixmap::scaled: Pixmap is a null pixmap
QPixmap::scaled: Pixmap is a null pixmap
QPixmap::scaled: Pixmap is a null pixmap
QPixmap::scaled: Pixmap is a null pixmap
QPixmap::scaled: Pixmap is a null pixmap
QPixmap::scaled: Pixmap is a null pixmap
QPixmap::scaled: Pixmap is a null pixmap
QPixmap::scaled: Pixmap is a null pixmap
QPixmap::scaled: Pixmap is a null pixmap
QPixmap::scaled: Pixmap is a null pixmap
QPixmap::scaled: Pixmap is a null pixmap
QPixmap::scaled: Pixmap is a null pixmap
QPixmap::scaled: Pixmap is a null pixmap
QPixmap::scaled: Pixmap is a null pixmap
QPixmap::scaled: Pixmap is a null pixmap
QPixmap::scaled: Pixmap is a null pixmap
QPixmap::scaled: Pixmap is a null pixmap
QPixmap::scaled: Pixmap is a null pixmap
QPixmap::scaled: Pixmap is a null pixmap
QPixmap::scaled: Pixmap is a null pixmap
QPixmap::scaled: Pixmap is a null pixmap
QPixmap::scaled: Pixmap is a null pixmap
QPixmap::scaled: Pixmap is a null pixmap
QPixmap::scaled: Pixmap is a null pixmap
QPixmap::scaled: Pixmap is a null pixmap

If I hover over where an icon should be I get flutters of:

QPixmap::scaled: Pixmap is a null pixmap
QPixmap::scaled: Pixmap is a null pixmap
QPixmap::scaled: Pixmap is a null pixmap
QPainter::begin: Paint device returned engine == 0, type: 2
QPainter::setOpacity: Painter not active
QPainter::begin: Paint device returned engine == 0, type: 2
QPainter::setOpacity: Painter not active
QPainter::begin: Paint device returned engine == 0, type: 2
QPainter::setCompositionMode: Painter not active
QPixmap::scaled: Pixmap is a null pixmap
QPainter::begin: Paint device returned engine == 0, type: 2
QPainter::setOpacity: Painter not active
QPainter::begin: Paint device returned engine == 0, type: 2
QPainter::setOpacity: Painter not active
QPainter::begin: Paint device returned engine == 0, type: 2
QPainter::setCompositionMode: Painter not active
QPixmap::scaled: Pixmap is a null pixmap
QPainter::begin: Paint device returned engine == 0, type: 2
QPainter::setOpacity: Painter not active
QPainter::begin: Paint device returned engine == 0, type: 2
QPainter::setOpacity: Painter not active
QPainter::begin: Paint device returned engine == 0, type: 2
QPainter::setCompositionMode: Painter not active
QPixmap::scaled: Pixmap is a null pixmap
QPainter::begin: Paint device returned engine == 0, type: 2
QPainter::setOpacity: Painter not active
QPainter::begin: Paint device returned engine == 0, type: 2
QPainter::setOpacity: Painter not active

I have manually downloaded Elementary.. but yet it still fails to be recognized. 
I am currently using Papirus-Adapta-Nokto, which is what fixed the lack of icons in the app launcher. If I change my icon theme and save it.. then a refresh of an open Dolphin window gives me icons again.  Closing and re-opening however removes them.

Any and all advice would be appreciated.
Thanks!
Ben