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![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(35.2, 5%, 13%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EMT%3C/text%3E%3C/svg%3E)
A few weeks ago I started noticing that I have some weird rendering issues in all WPF-apps I use.
Some parts of the GUI are not being rendered or are rendered very oversized and blurry which prevents me from using the apps as expected.
So far, I could reproduce the error in following applications:
Sadly I couldn't find myself able to fix this issue - after completely wiping my system drive and reinstalling Windows, the issue reappeared after a few days (it didn't appear on day 1, though).
// edit:
Here's what I've tried so far:
It looks like apps which are started immediately after logging in run with no issue...? I'm a little confused about that
Do you know what might cause this issue?
Is there anything I can do?
As it's quite hard to describe what I see on my screen I'll post a few screenshots
Have you checked the device driver for your display? Does it need updating?
Maybe it is a hardware issue? If you find an option like “Hardware acceleration” for your display or adapter, then try enabling or disabling it.
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(291.2, 54%, 38%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3ETW%3C/text%3E%3C/svg%3E)
I've got this same issue.. just with certain apps.. Glitchy graphics, showing enlarged versions of the displayed content in patches.
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(60.8, 82%, 15%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EJC%3C/text%3E%3C/svg%3E)
I have exactly the same issue.
What I tried:
Would be awesome to have a solution for this, it's very annoying :/
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(176, 76%, 27%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EH%3C/text%3E%3C/svg%3E)
Same thing here. I noticed this about two days ago in Affinity Photo and my own WPF apps. Updating graphics driver (GTX 1660 Super) doesnt help. I cant really work on my apps until this is fixed.
Sadly, both updating the graphics driver to the latest version (471.68 released at 2021-08-10) and enabling (and re-disabling) hardware-acceleration as described here didn't work.
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(38.4, 43%, 13%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EM%3C/text%3E%3C/svg%3E)
Same problem here but after 2h of search I've found solution on github:
https://github.com/dotnet/wpf/issues/707
TLDR;
After doing that my WPF apps started working normally(Affinity Designer, NordVPN client etc.)
Awesome! Thanks a ton!
I remember Settlers II and Rayman 2 (both very old games, lel) both had issues while the Nahimic-service was running.
Weird to hear that this also causes issues in other apps.
I had the Nahimic service installed cause of my motherboard's (ASUS ROG Zenith Extreme Alpha) audio driver.
Sadly I don't have a software-component I could uninstall to get rid of said service.
However, simply disabling the service "Nahimic service" and performing a reboot solved the issue!
You sure saved my day!
Thanks for this. I couldn't work out how to delete Nahimic, but disabling it seemed to do the trick.
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(224.00000000000003, 64%, 31%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EM%3C/text%3E%3C/svg%3E)
for me it was just Nahimic.
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(124.80000000000001, 82%, 22%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EG%3C/text%3E%3C/svg%3E)
Thx mokula, you saved my day ... i was investigating for hours on this....unbelievable pice s*** nahimic.
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(192, 77%, 28%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EDM%3C/text%3E%3C/svg%3E)
Mokula! Thanks a bunch! All of my WPF apps used to fill with random "buffer memory" when drug on and off the screen. Along with other weird glitches (only WPF apps affected) Turns out, I also had the "Nahimic" service. I simply stopped the service and the problem resolved immediately. Now to get rid of it for good next... I don't know where Nahimic came from, as this is a work laptop, but it may have been on my Dell G5 as part of the alienware stuff on it.
I'll have you know Dell support wanted to send someone out to change my motherboard. I refused cause it seemed to be an obvious software glitch.