Doesn't work and Cannot DEinstall

Sending Midi CC message no longer works. StreamDeck Button shows a yellow triangle with an exclamation when pressed.
I looked at the StreamDeck button settings (for Midi Control Change).
Under Midi Out Port it shows DAWControl [not found or doesn't exist!]

I tried deleting the button.
I tried deinstalling by right-clicking on any of the StreamDeck icons found under the Midi heading and clicking uninstall --- with no result.
I went to the Stream Store-> plugins and click the blue DEINSTALL button for the plugin which then became labelled with  "Install". I click on INSTALL and it says it has already been installed on this computer.
I tried all combinations of the above actions but the Midi plugin still appears in the list of functions on the streamdeck config.
After deleting my existing button which sends a CC Control Message, I tried adding a new CC Control Message button.
All of the dropdown fields on the setup are empty, and when I click on the dropdown down arrow, a yellow underline appears below the field for a moment. So it won't show me anything but that for the following fields:
Command
Value display
Fader Graphics
Midi Out Port
Midi in Port

Am I doing something wrong? I have upgraded the StreamDeck software to the latest version (5.1.3.14750) and the latest firmware (1.00.012) as of today and all of the above behavior is the same.

I moved the post to the Midi plugin forum.

I have realized that there is a problem with the plugin on older macOS versions (like 10.13), is that what you use?

I will try to get a new version out today where this problem is fixed.

A new plugin version (2.1.0.1) that works on older macOS versions is now available in the store.

Thanks for the speedy reply.

The above behavior was on a Windows 10 64-bit system.
Please let me know if you need any other info.
Thanks again.

Try the following:

• Manually delete the plugin folder: "%appdata%\Elgato\StreamDeck\Plugins\se.trevligaspel.midi.sdPlugin"
  
• Open the Store and install the plugin again.
  

If that doesn't help, please send me some log files:

• The pluginlog (if it exists): "%appdata%\Elgato\StreamDeck\Plugins\se.trevligaspel.midi.sdPlugin\pluginlog.txt"
  
• The Stream Deck log: "%appdata%\Elgato\StreamDeck\logs\StreamDeck0.log"
  

That allowed me to deinstall and reinstall. Thanks for your quick response, and for a great plugin!