On the latest 2023 version,
I just noticed that the context menu (right click menu) of Selection Toys to select the ‘instances’ is gone.
Also, the UI manager is not showing anything.
Am I just blanking out on this one? or is there any known issues?
@thomthom
Below is what I am expecting to see:
Restart SketchUp!
Hm…
What version of Windows are you on?
And what version of Internet Explorer is installed on your machine?
This is all new to me. The context menu items should be on by default as well. No loading errors?
It’s working fine on my SU22 and SU23.0. I’ll have to test on my SU23.1 machine tomorrow.
No Avail! 
Windows 11 Pro, 22H2.
I’m not sure how Internet Explorer is relevant. but it would make sense if it is as my version of windows only has Windows Edge?
No loading errors!
It’s relevant because that dialog is using the embedded system webview. On Windows that is the Internet Explorer engine. And it’s always on your machine. Microsoft has let users “uninstall” it, but that never meant it was completely removed. There are so many things that would use the IE engine, so uninstalling only meant that the icon for it was gone.
Can you enter this into the Ruby Console please:
html = <<EOT
<!DOCTYPE html>
<html>
<body>
User agent:
<script>document.write(navigator.userAgent)</script>
</body>
</html>
EOT
wd = UI::WebDialog.new
wd.set_html(html)
wd.show
On my Win11 machine on SU22 this outputs:
User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; Trident/7.0; rv:11.0) like Gecko SketchUp Pro/22.0 (PC)
I get this:
User agent: document.write(navigator.userAgent) Mozilla/5.0 (Windows NT 10.0; Win64; x64; Trident/7.0; rv:11.0) like Gecko
hm… maybe this is a SU23.1 issue… I have to try on my office machine tomorrow.
Anyone else seeing this issue?
As my due diligence, I will re-install SketchUp with admin rights and report back.
I just installed ST version 2.4.0 from the EW.
No major problems so far. Context menus show. The Settings dialog populates.
However, the settings dialog says “2.3” for the version in the dialog caption bar and page title.
Win 10 w/ latest updates. SU 23.1.340
After installing, I restarted SketchUp as I always do.
This may be completely separate issue, but just shooting in the dark as I am trying to report other Extensions issues on my machine:
I’ve always had issues in updating Trimble Scan Essentials for SketchUp via Extensions Manager.
It says that it updated successfully, but says that it failed on the Extensions Manager.
scan-essentials
And, whenever I try to import cloud point files via Scan Essentials, I get this message:
I’ve forced it to be uninstalled in the past and installed it manually to have it function correctly.
Now that I’ve reinstalled SketchUp to possibly address Selection Toy issue, it is back haunting me. 
Let us keep this topic on Selection Toys and please open a new one for Scan Essentials.
Did reinstalling fix Selection Toys ?
Nope!
Okay then, I would check permissions on your %AppData% “Plugins” folder and subfolders.
I’ve also tried on SU 23.1.340 and I’m not seeing this.
Does it happen if you have only Selection Tools and TT_Lib installed? (You have the latest version of TT_Lib installed?)
How do I check the permissions?
Yes.
Let me reinstall the entire SketchUp with no other extensions besides the two.
Confirming that this doesn’t happen if the only two are installed.
Now, I just gotta find that culprit.
Thanks!
Drives, Folders & Files - Ownership, Permissions, Settings & Privacy - Microsoft Community
You can also use a command shell and the icacls utility, like:
C:\>icacls "%AppData%/SketchUp/SketchUp 2023/SketchUp/Plugins"
… or …
C:\>icacls "%AppData%/SketchUp/SketchUp 2023/SketchUp/Plugins/tt_selection_toys"
For help understanding the output, at the command prompt use:
help icacls
Please keep up updated. I’d like to understand what would interfere with Selection Tools.
FYI: This issue was reported 8 months ago.