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

UPDATE: I did a session today over zoom using OBS and it crashed repeatedly (6 times in 15 minutes) while using the pen with MS Whiteboard. It's barely usable in this state. This is on a brand new Surface with fully updated Windows. So no, this has not been fixed. I'm monitoring the temp and it gets hot but not super hot. About 61C.

Thank you all for reporting this issue so detailled. I´m from germany and I am in contact here with the Support. I found out, what makes the screen blink and so told the support. In first step the HeatCore.dll in dwm.exe crashes, which then makes the "dwinit" (desktop window manager) of Iris Plus crash. HeatCore happens something to be, which makes the Pen commuincate to the Surface. Also there is a crash of the TconDriver, which is even a part of that Surface to Pen communication. We will see, if my reports will be taken serious or they are ignored. But very great, that you all shared this information over time.

After updates, even 21H1 it continues to have the issue, so I can also agree on that point. Furthermore yesterday evening my pen also had like 6-10 times the black screen in 15 minutes, so it was very heavy.

As you said, in this condition the Surface is barely usable...and not worth 1000€. Having that high price in mind, its a shame.

Hopefully MS will wake up and do soemthing, but momently they are riding the hype wave with Sun Valley update, so lets see how long it will take. Please do continue wrinting about the problem, that makes MS see, that its still a thing and needs to be solved.

There were a bunch of driver and firmware updates in Windows Update today. They did NOT fix this, it is super annoying at this point to see Microsoft push out updates which don't actually fix the issue.

So funny that you'd post this today. It occurred to me a few minutes ago that on Tuesday this week I did the cumulative Windows update and also saw there were some firmware updates that were also downloaded and installed that may have addressed the black screen issue. I tested my Surface Pro 7 a few minutes ago with the pen and didn't experience the issue. 

I'll have to try to use my pen a bit more throughout this week and see if the issue continues to not show up.

I'm optimistic the updates from this week might have fixed these issues. One of the updates was for Surface Service which was one of my problem events

Unfortunately, I have not found a solution. For whatever reason, I have seen it happen less, but it is still happening. I just tried using my pen right now for the first time today, and I was able to cause a brief one-two second black screen.