Alpine Container can not unpack Server Files

Describe the problem

The newest Beta for GregTech: New Horizons fails to download only when setting the Image Tag to java25-alpine. I have confirmed that i have pulled the newest image. The compose file works fine if the Tag is set to java-25.

Container definition

services:
  gtnh:
    image: itzg/minecraft-server:java25-alpine
    tty: true
    stdin_open: true
    ports:
      - "25565:25565"
    container_name: gtnh
    environment:
      EULA: "TRUE"
      TZ: "Europe/Berlin"
      TYPE: "GTNH"
      GTNH_PACK_VERSION: "2.9.0-beta-1"
      # Memory
      MEMORY: "8G"
      # Minecraft
      LEVEL_TYPE: "rwg"
      DIFFICULTY: "3"
      # Logs
      LOG_LEVEL: "info"
      DUMP_SERVER_PROPERTIES: "true"
      ENABLE_ROLLING_LOGS: "true"
      LOG_TIMESTAMP: "true"
      LOG_IPS: "false"
    volumes:
      - "data:/data"

volumes:
  data:

Container logs

[init] 2026-06-18 11:14:08+02:00 Changing ownership of /data to 1000 ...
[init] 2026-06-18 11:14:09+02:00 Running as uid=1000 gid=1000 with /data as 'drwxr-xr-x 1 1000 1000 0 Jun 18 04:27 /data'
[init] 2026-06-18 11:14:09+02:00 Image info: buildtime=2026-06-18T02:27:00.790Z,version=java25-alpine,revision=d20cd2dfe127c692e300f51aa0cd5340f1dc63bc
[init] 2026-06-18 11:14:09+02:00 Applying GTNH optimized server defaults
[init] 2026-06-18 11:14:10+02:00 TYPE=GTNH, setting Minecraft version to 1.7.10
[init] 2026-06-18 11:14:11+02:00 Selected 2.9.0-beta-1 as matching version for download.
[init] 2026-06-18 11:14:11+02:00 Use GTNH Server Java 17+ release.
[init] 2026-06-18 11:14:11+02:00 Server files located! Will proceed update https://downloads.gtnewhorizons.com/ServerPacks/betas/GT_New_Horizons_2.9.0-beta-1_Server_Java_17-25.zip.
[init] 2026-06-18 11:14:11+02:00 Update/Install required: /data/.gtnh-version is missing or does not match the selected version GT_New_Horizons_2.9.0-beta-1_Server_Java_17-25.zip.
[init] 2026-06-18 11:14:11+02:00 Downloading https://downloads.gtnewhorizons.com/ServerPacks/betas/GT_New_Horizons_2.9.0-beta-1_Server_Java_17-25.zip.
[init] 2026-06-18 11:15:43+02:00 Unpacking Server Files...
[init] 2026-06-18 11:15:43+02:00 [ERROR] Unsupported archive type: application/octet-stream 
[init] 2026-06-18 11:15:44+02:00 [ERROR] Unable to find content base of downloaded Server Files