UNKOWN ERROR // 2:2600J - Game crashes PC

Product: Battlefield 2042
Platform:PC
Please specify your platform model. PC
AMD or Nvidia Model Number AMD Ryzen 2700x
Enter RAM memory size in GB 16 GB
Are you using any software with an overlay? No
Which part of the game is the issue happening in? Game Menu
In which game menu were you when the bug occurred? At loading
Please select your region North America
On which server did this happen?
When did this happen? (dd.mm.yy hh:mm)
Summarize your bug When I start the game up from desktop I see this error.
How often does the bug occur? Often (50% - 99%)
Steps: How can we find the bug ourselves? Not sure
What happens when the bug occurs? Just an error code popups
What should be happening instead? maybe no errors

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So this does not prevent me from entering the game, but I get this error every once in awhile as well. Error Unknown Error // 2:2600J

Product: Battlefield 2042
Platform:PC
Please specify your platform model. PC
AMD or Nvidia Model Number Nvidia EVGA GTX 1070 FTW+
Enter RAM memory size in GB 32 gigs of ram
Are you using any software with an overlay? No
Which part of the game is the issue happening in? Multiplayer
Which part of the mode? Conquest
Please select your region North America
On which server did this happen? It happens on all servers and in all games
When did this happen? (dd.mm.yy hh:mm) 11/12/21
Summarize your bug Input lag is so bad the game is unplayable. Rather than smooth frames that follow mouse movement, I get like a two-frame transition from starting mouse location to finishing mouse location. The view will shift from one spot to another. And the game is completely unplayable.
How often does the bug occur? Every time (100%)
Steps: How can we find the bug ourselves? Run the game. But few seem to be having the same horrible stuttering problem I have. The game is completely unplayable.
What happens when the bug occurs? Horrible input lag
What should be happening instead? Smooth screen following mouse movement.

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Product: Battlefield 2042
Platform:PC
Please specify your platform model. PC
AMD or Nvidia Model Number Nvidia EVGA GTX 1070 FTW+
Enter RAM memory size in GB 32 gigs of ram
Are you using any software with an overlay? No
Which part of the game is the issue happening in? Multiplayer
Which part of the mode? Conquest
Please select your region North America
On which server did this happen? It happens on all servers and in all games
When did this happen? (dd.mm.yy hh:mm) 11/12/21
Summarize your bug Input lag is so bad the game is unplayable. Rather than smooth frames that follow mouse movement, I get like a two-frame transition from starting mouse location to finishing mouse location. The view will * from one spot to another. And the game is completely unplayable.
How often does the bug occur? Every time (100%)
Steps: How can we find the bug ourselves? Run the game. But few seem to be having the same horrible stuttering problem I have. The game is completely unplayable.
What happens when the bug occurs? Horrible input lag
What should be happening instead? Smooth screen following mouse movement.

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Input lag is so bad the game is unplayable. The worst part of the input lag is mouse movement. When I move my mouse, rather than my sights smoothly following mouse movement, the screen literally shows one mouse location first, does not track with the mouse, and then switches to the location where the mouse ends up. So, rather than smooth frames that follow mouse movement, I get a two-frame transition from starting mouse location to finishing mouse location. The view will shift from one spot to another.

In addition, firing a gun has about 1 - 2 second delay. If I push the trigger down too fast and let go, it won't even fire. And movement is horribly lagged as well.

On top of that, after following tech support's request to disable all services and programs at startup, I now receive an error code when loading the game: "Unknown error: 2:2600J." Disabling and preventing startup programs did not work, of course. I enabled the services and startup programs that my computer needs.

I have never had this problem with any other battlefield game.

Graphics are set to low, future frame rendering is off, vsync is disabled. Tried with mouse polling set to 500ms and as low as 125ms.

G900 Mouse
Intel i7 8700k
EVGA GTX 1070 FTW+ (updated drivers with a clean install)
32 gigs ram
Refresh rate 144hz

Mine is doing this as well, I tried all the same settings you tried and didnt have any luck. I'm hoping to find a fix. I thought it might be my Razr mouse since a lot of people having this issue seem to have Razrs but I tried some old Logitech and still no luck.

I get this error popup on the top right of the screen every time I start the game but it doesnt crash for me.

Product: Battlefield 2042
Platform:PC
Please specify your platform model. PC
AMD or Nvidia Model Number Asus Strix 3080 OC
Enter RAM memory size in GB 10GB
Are you using any software with an overlay? No
Which part of the game is the issue happening in? Game Menu
In which game menu were you when the bug occurred? main loading screen
Please select your region North America
On which server did this happen?
When did this happen? (dd.mm.yy hh:mm) 13.11.21 16:48
Summarize your bug When launching the game it launches in a 1280x720 window instead of full screen 3440*1440 and I get Unkown Error // 2:2600J
How often does the bug occur? Every time (100%)
Steps: How can we find the bug ourselves? Short of sending my PC to you I am not sure how you might duplicate this bug. Maybe its a ultrawide issue? I can't seem to see any other posts with the same error code
What happens when the bug occurs? it stretches the resolution (1280*720) across the screen instead of going full screen (3440*1440)
What should be happening instead? Game should launch at 3440*1440 as I have saved in my settings

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Every time I launch the game it seems to forget my resolution settings.  It will launch at 1280*720 in a window and then will go full screen but not resize to the proper resolution (3440*1440)

I also receive an Unknown Error // 2:2600J on launch as well

If its any consolation i seem to get the same error @ 3440*1440.

Might be as you say an ultra-wide issue. Doesn't seem to affect game play after it logs in though.

I don't know what was causing the issue, but I just installed a fresh version of windows, and the game runs fine now. 

FYI: I used settings -> recovery -> reset this PC -> get started -> downloaded a fresh version of windows.

I have yet to install all the drivers associated with my motherboard, but I think I'm going to pass for now unless I absolutely need to.

I have an ASUS Z370-E Gaming motherboard, and it comes with tons of drivers. Asus's software is *, so I'm afraid to install something unless I absolutely need to. 

Every time I boot up the game today I get this, I didn't have it last night?

ERROR
UNKNOWN ERROR // 2:2600J

and its on PC

I get this error as well, briefly, on the loading screen with the ship, however, the game continues to load and I am able to play.  But that red error code does appear in the upper right corner all the time.  I know this doesn't help anyone, but just for information sake I guess.

Product: Battlefield 2042
Platform:PC
Please specify your platform model. PC
AMD or Nvidia Model Number EVGA 1080Ti
Enter RAM memory size in GB 32 GB
Are you using any software with an overlay? Not really, however geforce exp is in the background.
Which part of the game is the issue happening in? Loading screen
In which game menu were you when the bug occurred? Happens on intial loading / boat scene
Please select your region North America
On which server did this happen? NA
When did this happen? (dd.mm.yy hh:mm) 
Summarize your bug  ERROR UNKOWN ERROR // 2:2600J
How often does the bug occur? Every time (100%)
Steps:
What happens when the bug occurs? Currently I am still able to load in the game and play

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