Restic Backup Up data missing, folder empty

I created a new repo and backed up all my data. The console log showed everything succeded. But when I check my data folder, there is no data to be found. This is the docker compose with the mount:

services:
  rest_server:
    image: restic/rest-server:0.13.0
    container_name: rest_server
    ports:
      - 8000:8000
    volumes:
      - .\data:/data

The data should be in the data folder where the docker compose is, but the folder is empty.

SOLVED 2: It was a Windows Docker for Desktop Error which saved the data into WSL instead of the mounted drive.