Modding Help Door sound effect replacing

Hello! I'm trying to replace the sound effect of the Fragments of the Ruin's ship door with something more fitting.

This is the part that needs to be patched:

Code:

"animationCustom" : {
    "sounds" : {
      "open" : {
        "pool" : [ "/sfx/objects/apexcooldoor_open.ogg" ],
        "rangeMultiplier" : 0.5
      },
      "close" : {
        "pool" : [ "/sfx/objects/apexcooldoor_close.ogg" ],
        "rangeMultiplier" : 0.5
      }
    }
  }

So I created a patch like this:

Code:

[
  {
    "op": "replace",
    "path": "/animationCustom/sounds/open",
    "value": {
      "pool": [
      "/sfx/objects/fleshdoor_open.ogg"
      ]
    }
  },
  {
    "op": "replace",
    "path": "/animationCustom/sounds/close",
    "value": {
      "pool": [
      "/sfx/objects/fleshdoor_close.ogg"
      ]
    }
  }
]

But upon closing the door I still have the old sound and upon opening it The game froze and I got this error:
[10:13:56.874] [Error] Exception caught in client main-loop
(AssetException) Path 'sfx/objects/fleshdoor_open.ogg' must be absolute

I tried doing it like this:

Code:

[
  {
    "op": "replace",
    "path": "/animationCustom/sounds/open/pool/0",
    "value": "/sfx/objects/fleshdoor_open.ogg"
  },
  {
    "op": "replace",
    "path": "/animationCustom/sounds/close/pool/0",
    "value": "/sfx/objects/fleshdoor_close.ogg"
  }
]

To no avail.

I'm not sure where the problem is. Any ideas?

EDIT: OK, so the after noticing that the patch worked perfectly upon using the "vanilla ship" option I understood that the problem was with FU's BYOS. Adding a Blockkey.config.patch to FU BYOS patch mod solved the problem.