Black Mail In Whitechapel: Find the mail box and the letter

So I did found the mail and also read it but suddenly the game crashed and when I run it again I didn't have the mail, I went again in the place where I found it and it wasn't there. Has it happened to anyone else? Just don't tell me I will have to start the game again from the beginning.

https://drive.google.com/file/d/14MT7TnjhKJKm6FZPQ65R2VYXi8Jafji-/view?usp=drivesdk

https://drive.google.com/file/d/1xhwV8QF2VDNFxG_Rrflj8geyIgtC4LjR/view?usp=drivesdk

mostly likely. these people aren't keeping up with bug fixes whatsoever and it's so irritating considering I've had it for so long. I went on a 5 month long break and came back thinking it would be fixed and it's the same. I got caught on a bug in the red rivers mission. I started a new save but kept my other in hope of a fix. I'm playing on ps4.