Yes i have the exact same error it jumps between A bex crash,

PhysX3Common_x86.dll error and arma3.exe has stopped working...

This seems to only happen on multiplayer servers in this case it was in a mod called Epoch.

When this problem started happening it would stay on that server and if i tried to join i was able to enter the lobby but during the loading screen it would crash and in the server it would say my Battleye client was not responding

So i then tried to join another Epoch server and i was able to join no problem

This happens for me in more than epoch. It just happened in King of the Hill. The issue is so frequent now I can't even play the game.

I've also never seen an error pertaining or relating to anything involving PhysX.

So i have been doing some testing and when i launch arma 3 using steam and altab but i have to be fully loaded in the server i crash instantly

If i use the a3launcher the game loads super fast and the game wont crash i can altab my heart out and it wont crash but i did this lastnight the game did crash at some point about a hour or 2 then i could not get in the server at all so i gave up for the night.

Today i just did the following i deleted my PhysX3Common_x86.dll i re-downloded it from verifying my files threw steam and in the a3launcher settings i added a cmd line called -malloc=system under additional parameters and have attempted to join the server that i was not able to get in to lastnight

I was able to join the server now the thing is how long will it last idk but you could try this if you want.

The -malloc=system cmd line is a memory allocator this one is set to for it to use windows which might stop the game from crashing from bex errors

More Details here https://community.bistudio.com/wiki/Arma_3:_Custom_Memory_Allocator

"Buffer over flow" if you played garrys mod you might be familiar with this due to the use of lua Scripts.

Thanks for your attention on the matter.

I'm able to load into the games fine, its randomly while playing that it happens, and now it seems to be happening soon after logging in and a lot more frequently.

I've tired the -malloc=system, tried to clear DLL's, and I've tried to delete the file you mention and verifying as well. Issue still persists...

Well i know another way of a workaround or temp fix is to replace your main mods folder just delete your @mod folder and grab a fresh one or use the one you have downloaded.

Then in your arma 3 folder you will see a folder called DLL go into it and delete them all then verify the files threw steam and it will download fresh ones this may allow you to join the server in fact you could just try not downloading them at all and have a empty Dll folder which for some reason yes you are able to join a server with out having those DLL's which makes no sense.

I have uploaded my crash logs to help the devs better understand the problem

the only thing you and me have in common is we get the same error and have the same processor

New Error:
Problem signature:

  Problem Event Name:	APPCRASH
  Application Name:	arma3.exe
  Application Version:	1.40.129.533
  Application Timestamp:	54f47474
  Fault Module Name:	arma3.exe
  Fault Module Version:	1.40.129.533
  Fault Module Timestamp:	54f47474
  Exception Code:	80000004
  Exception Offset:	0075a00c
  OS Version:	6.1.7601.2.1.0.256.1
  Locale ID:	1033
  Additional Information 1:	0a9e
  Additional Information 2:	0a9e372d3b4ad19135b953a78882e789
  Additional Information 3:	0a9e
  Additional Information 4:	0a9e372d3b4ad19135b953a78882e789

Read our privacy statement online:

  http://go.microsoft.com/fwlink/?linkid=104288&clcid=0x0409

If the online privacy statement is not available, please read our privacy statement offline:

C:\Windows\system32\en-US\erofflps.txt

I had a lot of problems with my GTX 970 and with the few latest drivers. I've downgraded back to 344.75 and my crashes has been stopped. You could also try that driver if it helps.

Hmm there was a new driver released today 347.88 will try those and report back

I also have a GTX 970

Installed the latest drivers played for 5 min then crashed again same error.

jimmy, you've had the same problems I'm having? you think its the card?

I also am crashing in single player campaign. Here's the error:

Faulting application name: arma3.exe, version: 1.40.129.533, time stamp: 0x54f47474
Faulting module name: nvwgf2um.dll, version: 9.18.13.4788, time stamp: 0x5503046a
Exception code: 0xc0000005
Fault offset: 0x006dfd5f
Faulting process id: 0x263c
Faulting application start time: 0x01d060ff70c6093a
Faulting application path: C:\Program Files (x86)\Steam\steamapps\common\Arma 3\arma3.exe
Faulting module path: C:\Windows\system32\nvwgf2um.dll
Report Id: 253cfa55-ccf3-11e4-953a-005056c00008

Hello,
thank you for submitting the ticket. I have assigned the author's crashdumps to the programmers.

@Doorstop, please create a new ticket regarding your issue.