i exited slack completely and notepad++ is still messed up. :(

Suggest ALSO restart Windows (reboot) as whatever Slack messed up may still exist (or some artefact of it) even though Slack is supposedly shutdown. Maybe even check the running processes to see if any remainder of Slack (or whatever screen sharing app was used) may still be in memory before the reboot tried.

Terry

I had the same problem with Slack and the same solution as @niftyruin.

To expand a little further: Running Notepad++ as Administrator temporarily fixed the problem. (I had found this solution elsewhere). Stopping the screen share from Slack did NOT fix the issue. However, when I exited Slack entirely (CTRL+Q) and then exited Notepad++, running it again it was fixed.

i exited slack completely and notepad++ is still messed up. :(

To expand a little further: Running Notepad++ as Administrator temporarily fixed the problem. (I had found this solution elsewhere). Stopping the screen share from Slack did NOT fix the issue. However, when I exited Slack entirely (CTRL+Q) and then exited Notepad++, running it again it was fixed.

Slack recently introduced a feature called “Huddle”. In a Huddle you can share your screen, or a Window. It turns out, if I am in a Huddle and sharing a window, and then exit the Huddle without stopping the sharing, an invisible window remains behind that interferes with various programs, including Notepad++.

What makes this confusing is that when sharing your screen or window with a Huddle your screen or application has a green border around it to signify sharing. This is gone when the Huddle ends in the manner above. However, if I tried to click on Slack from the system tray the border returned as though it was still sharing, and Slack went unresponsive. Eventually, the bordered area went unresponsive and had an X to click on in the upper right, Windows asked me if I wanted to end the task, and I did. Problem solved, Notepad++ works fine now. I didn’t have to futz with drivers or reboots or anything.

This is one potential issue and solution, I’m sure there are others.

2021-04 Cumulative Update for Windows 10 (KB5001330) OS Build 19042.928 - https://support.microsoft.com/en-us/topic/april-13-2021-kb5001330-os-builds-19041-928-and-19042-928-cead30cd-f284-4115-a42f-d67fec538490

I am now running on the following and can no longer reproduce the rendering issues in npp or any of the other affected apps (Microsoft SSMS, Slack)

My working configuration is reporting as follows:

OS Name : Windows 10 Pro (64-bit)
OS Version : 2009
OS Build : 19042.870

Here is my debug info:

Notepad++ v7.9.5 (64-bit)
Build time : Mar 21 2021 - 02:13:17
Path : C:\Program Files\Notepad++\notepad++.exe
Admin mode : ON
Local Conf mode : OFF
OS Name : Windows 10 Pro (64-bit)
OS Version : 2009
OS Build : 19042.928
Current ANSI codepage : 1252
Plugins : mimeTools.dll NppConverter.dll NppExport.dll

OS Build is the same as the OP

Another thing that leads me to believe it is a windows update problem is that I’ve been having odd window rendering issues in other apps too. Microsoft SQL Server Manager Studio is not displaying panels properly, if I try to use the edit table function it displays the panel outside the application window, anchored to the top left corner of my screen, then it will start throwing dialogs about ‘mscorlib.dll’ errors. Then some other apps will not restore correctly after being minimized (slack). I wasn’t connecting the dots between these symptoms until I decided to check the forum here, so I will be more diligent about collecting information and trying to piece things together. I’ll update if I figure anything out.

Oh man, updated my video drivers and rebooted

@Alan-Kilborn replied,

If I’m remembering correctly, a reboot only solves it for a short time (for other affected users).

Actually, in https://community.notepad-plus-plus.org/post/64735, @Dan-Schreck mentioned he updated his nVidia drivers and rebooted, and he hasn’t been back in the intervening 13 days to complain that it came back.

So a reboot alone doesn’t look like it is permanent, but reboot+drivers might be enough.

Good luck, @DomWesker . Please come back and let us know if the problem comes back.

rebooted

If I’m remembering correctly, a reboot only solves it for a short time (for other affected users).

Notepad++ v7.9.5 (64-bit)
Build time : Mar 21 2021 - 02:13:17
Path : C:\Program Files\Notepad++\notepad++.exe
Admin mode : OFF
Local Conf mode : OFF
OS Name : Windows 10 Pro (64-bit)
OS Version : 2009
OS Build : 19042.928
Current ANSI codepage : 1252
Plugins : mimeTools.dll NppConverter.dll NppExport.dll

are you using window manager software like
https://www.nvidia.com/en-us/design-visualization/software/rtx-desktop-manager/ or similar from AMD etc. ?

The confirmation that v7.9.4 has the same problem may be useful information. So is the behavior that RunAsAdministrator stops the problem. I have updated issue #9717 with that new data.

After you did the RunAsAdmin, does running it normally again cause the problem to come back, or has it fixed itself? If it hasn’t fixed itself, could you try downloading a portable version and running from another directory?

Notepad++ v7.9.5 (64-bit)
Build time : Mar 21 2021 - 02:13:17
Path : C:\Program Files\Notepad++\notepad++.exe
Admin mode : OFF
Local Conf mode : OFF
OS Name : Windows 10 Pro (64-bit)
OS Version : 2009
OS Build : 19042.928
Current ANSI codepage : 1252
Plugins : mimeTools.dll NppConverter.dll NppExport.dll

Notepad++ v7.9.4 (64-bit)
Build time : Mar 15 2021 - 01:03:10
Path : C:\Program Files\Notepad++\notepad++.exe
Admin mode : OFF
Local Conf mode : OFF
OS Name : Windows 10 Pro (64-bit)
OS Version : 2009
OS Build : 19042.928
Current ANSI codepage : 1252
Plugins : mimeTools.dll NppConverter.dll NppExport.dll

so even after rolling back to your previous version you still have this issue?
What was your previous version and can you post your debug-info?
Is available from the ? menu.

It’s becoming an epidemic! At the very least a FAQ!

Sorry! I didn’t see the other thread until after posting.