Ultimatum - Crash to desktop - No error

Others have reported this issue already (several times), however I would like to add more detail and info that may or may not be of use in solving the problem.

In approximately 50% (possibly more) of Ultimatum encounters, the game will simply crash to desktop after a short 1-2 second freeze. There is no error message whatsoever. These crashes happen either at the start of the first ultimatum wave, or sometimes later (usually round 4 or 5 in my experience), but always at the beginning of the wave.

This is not an instance crash, as the instance is always intact upon logging back in to the game. However the minimap has reset to zero progress (Full fog of war).

I'm playing a bladefall/blade blast poison assassin, with the crashes typically happening after casting bladefall (May or may not be due to bladefall itself, but since it is always the first thing to be cast at the start of the wave it is hard to tell).

MTX: Illusionist effect on Bladefall and Bladeblast, with the new silver crescent armour set.
Also tested without MTX enabled, crashes still occur.

PC Specs:
- Ryzen 7 3700X
- 32gb 3200mhz ram
- AMD RX 5700xt
- 1tb NVME SSD (Game install drive)

Game Settings:
- 3440x1440 resolution
- Windowed Fullscreen
- Vulkan renderer (Tested with DX11 also)
- Antialiasing at High
- Global illumination disabled
- Other details mostly set to low for performance
- Dynamic culling/resolution disabled
- Multithreading enabled

Ingame /debug report number: 1,401,927,810
https://imgur.com/a/R2bK2Pf

Still crashing during Ultimatum today after 3.14c patch applied.

Tried disabling sound and switching between vulkan/directX with no effect.
Don't think it's related to what skills I'm using (RoA/Vaal RoA, Blade Blast, Dash - mostly, during encounters for reference anyway).

I'm having this exact same issue, on a blade vortex poison assassin.

Also having same issue. Only crashing during ultimatums. I am also play Bladefall/Bladeblast poison assassin!

I've seen no trends in when I crash, Ultimatum mods don't seem to be the issue, as I've crashed with multiple different ones.

I have the same issue. After yesterdays patch (3.14.0c), I only crashed one more time (could be coincidental and lack of large numbers, did about 10-15 ultimatums x ~5waves), but it crashed in the exact same way - so I believe the problem persists. I am also playing poison, which seems to be common in almost all these cases. I made some small changes to my build, going from Cobra Lash to stacking poison with Lancing Steel. Using HoA primarily, I assume most of the others in this thread also uses HoA. In any case, everyone in the post uses poison.

Before 3.14.0c I believe I would have crashed more (used to crash in more than 50% of ultimatums), but again, I don't have enough numbers.

Apart from these types of crashes, I have zero.

Tried most gfx setups possible ingame.

3090 / x5800 setup

Same here. playing bladefall/blade blast poison. I already have 29*dumped files for it :(
I am losing a significant portion of both time and items while playing. There are also 16 deaths from crashes.

"

Here is the event log from Event viewer

Faulting application name: PathOfExile_x64_KG.exe, version: 0.0.0.0, time stamp: 0x6080c210
Faulting module name: PathOfExile_x64_KG.exe, version: 0.0.0.0, time stamp: 0x6080c210
Exception code: 0xc0000005
Fault offset: 0x00000000007e620a
Faulting process id: 0x5438
Faulting application start time: 0x01d73753e9ddac65
Faulting application start time: C:\Game\Path of Exile\PathOfExile_x64_KG.exe
Faulting module path: C:\Game\Path of Exile\PathOfExile_x64_KG.exe
Report Id: 17fa49e9-d5e3-4df7-9e7d-be4416c57416

Just want to add to this. I'm also crashing like 50% of my ultimatums, no error msg. I tried Vulcan and dx11, cleared cache, reinstalled game...

Funny thing is, I also play BB/BF with HoA and the illusionist effect. Starting to think it has something to do with the skill...

0xc0000005 generally means the program is trying write or read for memory that isn't allocated to the program. Since this isn't happening with everyone, that means their compiler is using an instruction set that is iffy on certain CPUs.

What CPU are you using?

I've noticed recently that PoE crashes a lot more in juicy encounters (not only) when I have Chrome running. This includes both with/without error crashes. I dont have enough observable data to make a statement but for me it seems I dont get any crashes while Chrome (any browser?) is not running

I am getting the same issue. About 1 in 3 Ultimatums crash in this way. There is always a burst of static noise as the game freezes.

Upon reloading, the map is exactly as I left it, but the mini-map data is as if it was brand new.

Playing Arakaali's Fang, Guardian.