pak hash does not match calculated hash

Product: Apex Legends
Platform:Steam-PC
Please specify your platform model. PC
AMD or Nvidia Model Number na
Enter RAM memory size in GB na
What is your gamertag/PSN ID/EA Account name? na
Please provide your squad mates' gamertag/PSN ID/EA Account name if possible.
Are you using any software with an overlay? No
Which Legend were you playing (if applicable)?
Which Legends were your squad mates using (if applicable)?
Where did the issue occur? In a match
Which part of the map or menu were you in? If you don't remember the exact name, please describe the area or what you were trying to do in the menu. na
What were you doing when the issue occurred? E.g. respawning a squad mate at a beacon, using an ability, a squad mate left the game. na
Did your squad mates also experience the issue? I don't know
How many matches had you played in a row before the issue occurred? na
When did this happen? (dd.mm.yy hh:mm)
How often does the bug occur? Rarely (0% - 9%)
How severe is your issue? Major impacts to gameplay
What happens when the bug occurs? na
What should be happening instead? na
Steps: How can we find the bug ourselves? na

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Game crashed while playing ranked with error : Pak hash does not match calculated hash
Since then, I get the same error message upon launching the game. No errors with other game, this ish only happens in Apex Legends 

-reinstalled the game already and tried 3 different ssd's
-Added steam and EAC folders exclusion with antivirus
-even clean installed windows and updated all the drivers
-I'm on Steam and also tried installing the game on the EA app, but it was still the same.
Thought it was due to a faulty ram/ gpu but no, I tried other set of 16gb ram and with my old gpu(installed correct driver) and its the same engine error upon launch

Any fix ?

Its a pretty simple problem, when I start the game 90% of the time it crashes with the message: pack hash does not match calculated hash. I have had this problem for roughly a month and couldnt find any solutions. I have tried Verifying the game wich hasnt worked. I also tried reinstalling and updating my graphics driver wich also didnt work. I also dont use any externalprogramms or a VPN.

Edit: this is apex btw.

waiting for your reply

Product: Apex Legends
Platform:PC
Please specify your platform model. PC
AMD or Nvidia Model Number 1650
Enter RAM memory size in GB 16
What is your gamertag/PSN ID/EA Account name? teo-Junior
Please provide your squad mates' gamertag/PSN ID/EA Account name if possible.
Are you using any software with an overlay? No
Which Legend were you playing (if applicable)?
Which Legends were your squad mates using (if applicable)?
Where did the issue occur? In the lobby (waiting area before the match)
Which part of the map or menu were you in? If you don't remember the exact name, please describe the area or what you were trying to do in the menu. the loading screen for opening the game
What were you doing when the issue occurred? E.g. respawning a squad mate at a beacon, using an ability, a squad mate left the game. launching the game
Did your squad mates also experience the issue? I don't know
How many matches had you played in a row before the issue occurred? none
When did this happen? (dd.mm.yy hh:mm) 2 days ago
How often does the bug occur? Every time (100%)
How severe is your issue? Major impacts to gameplay
What happens when the bug occurs? it kicks me off the game
What should be happening instead? loading me into the lobby
Steps: How can we find the bug ourselves? loading the game

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when i open apex legends it gives me an engine error saying unsupported pak hash format

I've been having problems with apex for awhile now and i've tried every tip i've come across with this problem but none have been working.

I will leave an attachment with a picture of the current error message i get when trying to start Apex.

When trying to open Apex i get a small white window that says "engine error - pak hash does not match calculated hash"

I've tried every solution that i could find online but none that helps.

All the things i've tried so far.

* Uninstalling/reinstalling through both steam and EA app

* Reinstalling Windows 10 and 11.

* Verifying integrity of files (steam) -  Repair (EA app)

* Updating all drivers (including GPU, motherboard, BIOS)

* Removing said "rpak" files that i've gotten errors on and repairing the game.

* Cleared all cache files.

* Uninstalled Easy Anti Cheat and manually installing.

* Given access through firewall to both Apex and Easy Anti Cheat  (including to temporary disable firewall)

Specs on PC:
Processor AMD Ryzen 5 3600 6-Core Processor 3.60 GHz
RAM = 32,0 GB

ROG-STRIX-B450-F-GAMING-ASUS-5404

NVIDIA Geforce RTX 3060 Ti

P.S

At this point i'm not really expecting a solution as it feels like i've given up at this point.

Worst case for me is that i just keep it uninstalled and never bother with the game again.

Hi @teo-pet2010,

I've moved your post to this thread as it seems to be the same error. Please have a look at the accepted solution as that has resolved the issue for some players.