Changes in config.blk are overwritten and effectively erased by the game at launch

Hi guys!

I wanted to set up some sound and hangar mods but every time I save the changes on config.blk and enter the game it overwrites the file and any change I’ve made are erased. I’ve had custom localization for more than an year and now it’s messed up. Now I can’t even get my custom messages.

I’ve tried deleting the file and opening the game so it would generate a new one but it didn’t solve anything. Verify integrity of game files trough steam also didn’t work.

Thank you for your help!