Unable to downgrade SPT

Having an issue with downgrading the client from 12.12 to 12.11.7, I'm using the most up to date patcher and SPTAKI and I've tried from fresh about 4-5 times now and still the same result, the result being this error when I launch the patcher:

Failed to find matching source file for 'D:\Single Tarkov\Patcher\Aki_Patches\EscapeFromTarkov.exe.delta'

i tried deleting the files it said were the issue but to no avail. i also tried downloading and launching things in different orders but that didnt work either.

please help i just wanna game

Quote from PoppleOs

Its possible its a file intergrity issue from base download. Have you trying running an integrity check on your bsg launcher and then redownloading the files?

Yeah I have tried that twice and all the files are up to date, nothing missing

Quote from PoppleOs

Ohhh did you take the patcher and folder out of the original folder the come in. You have to take them out and put them into the same base folder as all as the EscapeFromTarkov folder

oh my fucking god why did i not think of that godammit!?!??!?!?! its working now thank you so much lmao