I have DisplayFusion version 9.7 running on Windows 10.0.19042

5120x1440 ultrawide monitor @120Hz, set up as a single with a central split using DisplayFusion. If I drag a Microsoft Edge around the screen Windows Explorer crashes.

Faulting application name: explorer.exe, version: 10.0.19041.487, time stamp: 0x86661bbb
Faulting module name: ucrtbase.dll, version: 10.0.19041.487, time stamp: 0x0d8057d8
Exception code: 0xc0000409
Fault offset: 0x000000000007287e
Faulting process id: 0xa240
Faulting application start time: 0x01d68284de275a8a
Faulting application path: C:\Windows\explorer.exe
Faulting module path: C:\Windows\System32\ucrtbase.dll
Report Id: f00a9ac5-a343-42e2-b6a8-8a614f9a77ef
Faulting package full name:
Faulting package-relative application ID:

- If I disable DisplayFusion the crashes do not occur.
- If I drag Firefox or Event Viewer the crashes do not occur.

Happens every time, after reboots.

Attached. It's strange, I can drag other windows around the screen until i am blue in the face, but drag Edge around when DisplayFusion is running and explorer will crash after a random period of time, sometimes quickly, sometimes after a second or two. Stop DF and I can drag Edge around for ages no problem.

I too have the issue. I hadn't made the association with MS Edge before, but it has been my primary browser lately.
It seems that move Edge interaction on the second monitor is the issue.
Moving it to/from Monitor 2 seems to trigger it for me. I thought I'd seen it crash with seemingly no interaction. I am not so sure now.
I updated to the DisplayFusion Beta last week, but the problem persists.
I had not reported it because I am running the Windows 10 "Beta Channel".
I have attached logs, in case you are interested.

Faulting application name: explorer.exe, version: 10.0.19041.488, time stamp: 0xb1a44bf9
Faulting module name: ucrtbase.dll, version: 10.0.19041.488, time stamp: 0x0d8057d8
Exception code: 0xc0000409
Fault offset: 0x000000000007287e
Faulting process id: 0x40c0
Faulting application start time: 0x01d68878e7659afa
Faulting application path: C:\WINDOWS\explorer.exe
Faulting module path: C:\WINDOWS\System32\ucrtbase.dll
Report Id: 23d4013e-b418-43b9-999c-62d5f7646d93
Faulting package full name:
Faulting package-relative application ID:

Yes Beta channel Insider.

As per Michael Gillen, it only happens on the second monitor (good pickup Michael!)

I hope you figure it out. I too have this problem and it's such a bummer as I like to drag out tabs with videos from the browser to the secondary to keep them playing while doing other things. And since switching to Edge Chromium it messes with "other things"

I have this issue as well. Windows 10 20H2 (19042.546) - Release preview ring. The exact same crash when moving Microsoft Edge to second monitor. There was something in the release notes for 546 to fix a reliability issue with Edge so I was hoping that would resolve the issue but it did not. I tried completely deleting the files to reset Microsoft Edge and doing a clean install of my NVidia drivers and all the other usual things like sfc and dism etc. and nothing would fix it. Then I found this post and immediately after uninstalling DisplayFusion, the problem goes away. Hopefully this can be fixed.

Do you have an issue number or other way to track progress? This makes this product all but unusable for the way I work, which when it is a product I have paid for makes me inclined to ask for a refund if it is not going to be / can't be fixed.

Let's not forget that we are running on a version of Windows, not yet in general release.
I'm sure that they will get it fixed.
For now, I have gone back to Chrome for the items in my right monitor. I understand that may not be as easy for some, as it is for me, to swap back and forth between browsers. But, I use Firefox for some tasks too.

Yep, fair comment.

I'm running on 19042.546, Beta channel not Dev channel. Still does it.

Keep in mind that 20226 is a developer build for a new update out several months from now. 19042 is currently intended to be the final release of 20H2 and is expected to be released to the public this month so there's a good possibility the issue with DisplayFusion could continue to exist for awhile.
While I also use multiple browsers, Edge is important enough for various reasons that I'm having to give up DisplayFusion for now. I purchased a single license for DisplayFusion 9 years ago so I'm sure I already got my money's worth, but nevertheless, I'm still disappointed having to potentially give up the software until the next major Windows update comes out maybe 6-7 months from now.

Ever since Windows 20H2 I'm having similar problems. Explorer.exe crashes non stop, DisplayFusion is not usable because of this. I've reinstalled DF while using a clean config, but the issue still happens.

Same for me, 20H2 (Enterprise, 19042.572)... Edge 86.0.622.58 constantly making explorer.exe crash. Quit DisplayFusion and all is well... Seeing no updates to DisplayFustion and not much engagement on this thread is making me wonder if it's time to ditch DisplayFustion and just go with what Windows 10 has built in these days... :-/

>We do have a temporary fix coming for this in the next beta.

Thank you. We look forward to trying the beta when it's ready.

Can confirm this works for me. Good to have a workaround until MS gets around to fixing this
Thanks!

Thank you!
The workaround is working nicely.

Just want to confirm this, as s temporary work around Edge shows on both main taskbar and DF now? (I'm still on 2004 version, which was not affected by that bug and this is the behavior I see with DF 9.7.1 beta 5) Would it be possible have this work around applied only to the systems that were affected by that bug?

Great, thanks for releasing a beta for this guys, it's been a pain. I'm trying to download now, but the link takes me to a 404 page?

Even though it's not stated in the changes log, v2004 no longer shows Edge on system taskbar. Thanks.