Repeated Daily Crashes of Desktop Window Manager in Reliability Monitor When Using Pen

Interestingly enough, it appears that it does happen sometimes even when not using the pen. I didn't notice it, I don't know whether the screen just didn't go black or the lid was closed, but it still shows up in Reliability Monitor with the same HeatCore.dll issue. 
The reason why I noticed is that there is another effect of dwm.exe crashing: Microsoft Teams (and sometimes some other Electron-based apps ... maybe) go black (but only sometimes), so I have to restart it completely in order to use it.

Anyway, according to MS support, their technical department should get back to me in the next couple of days, MAYBE they come up with a fix. Hopefully. 

Fingers crossed.

My problem remains, at least once a day, the first time my pen touches the screen I get a DWM crash. 

Source

Desktop Window Manager

Summary

Stopped working

Date

‎4/‎23/‎2021 9:37 AM

Status

Report sent

Description

Faulting Application Path: C:\Windows\System32\dwm.exe

Problem signature

Problem Event Name: BEX64

Application Name: dwm.exe

Application Version: 10.0.19041.746

Application Timestamp: 6be51595

Fault Module Name: HeatCore.dll

Fault Module Version: 0.0.0.0

Fault Module Timestamp: 54ab4a1a

Exception Offset: 0000000000035b5d

Exception Code: c0000409

Exception Data: 0000000000000002

OS Version: 10.0.19042.2.0.0.768.101

Locale ID: 1033

Additional Information 1: b111

Additional Information 2: b111fda7573a1e10441015376b653053

Additional Information 3: f2cb

Additional Information 4: f2cb04e9d7bee3b9ba950fa6b38410fa

Extra information about the problem

Bucket ID: 3af1b524c9df8794d117428742533340 (1231526171809887040)

Hello

My crashes happen even when running on battery, it doesn't make a difference plugged or unplugged

My problem has been solved....I don't use the pen anymore.

No pen, no crashes.

It must be something to do with the pen touching the screen.

Hi everybody, I have the exact same problem.
I even replaced my Surface with another one via telephonic assistance, to find that even this new unit has the same problem. 

By my experience, I can tell  that the problem presents only when the Surface is connected via AC plug; running on battery gives me almost no problems.

The only times when I have problems of black screens and HeatCore.dll errors even on battery is when I'm showing my screen on a video call, no matter the software I'm using (MS Teams, Google Meet, Zoom...): if I use the pen in this particular setup, sooner or later I'll get a black screen (again, also in this situation, running on battery reduces the crashes).

Hope to help someone with my experience and hoping even harder in a solution by Microsoft (seriously Microsoft, I don't want to use an overpriced iPad to write my notes for University)

Hi Ja_Mo

I thought so. I really can't be bothered reinstalling  windows 10....!!!!

He did mention to uninstall a specific patch that is causing this issue...but I am not going to bother because who knows if that will fix it as well.

I am still waiting for the fix updates from Microsoft...absolutely pathetic!

Cheers!

Hi Ja_Mo

How useless. I find that my crashes happen more at night time???

My brother who is an IT tech suggested a cleanup of my computer...to reinstall windows ...which I am not sure will fix it due to the updates that you just mentioned!

Cheers