Beta Timeline shows wrong thumbnail until image is opened

[Tqqk]

I have searched the existing issues, both open and closed, to make sure this is not a duplicate report.

• Yes

The bug

Description

In the Beta Timeline view, some entries initially display an incorrect image (often a deleted screenshot or random older picture). When the entry is opened, the correct image is displayed. This suggests the timeline is showing a stale thumbnail or cached preview until the full image is loaded.

Expected Behavior

The timeline should always show the correct thumbnail corresponding to the actual image.

Actual Behavior

A wrong image/thumbnail is shown in the timeline until the item is opened. The incorrect preview often appears to be: a deleted screenshot or a random older picture from the device

Steps tried to fix it

• Ran Local and Remote sync jobs, Hash asset job
• Cleared File Cache, reset SQLite Database
• Completely cleared the data/reinstall the Immich mobile app

Additional info

• This bug occurs only on a few random image thumbnails.
• It does not occur on the non Beta Timeline.
• Found a maybe(?) similar issue here: When the Beta Timeline is on, Immich mobile app shows deleted assets in People directory. #21222

The OS that Immich Server is running on

Ubuntu 24.04.3 LTS

Version of Immich Server

v1.141.1

Version of Immich Mobile App

v1.141.1

Platform with the issue

• Server
• Web
• Mobile

Device make and model

Google Pixel 9

Your docker-compose.yml content

networks:
  frontend-immich:
    external: true
  backend-immich:

name: immich

services:
  immich-server:
    container_name: immich_server

    image: ghcr.io/immich-app/immich-server:${IMMICH_VERSION:-release}
    #image: altran1502/immich-server:${IMMICH_VERSION:-release}

    # extends:
    #   file: hwaccel.transcoding.yml
    #   service: cpu # set to one of [nvenc, quicksync, rkmpp, vaapi, vaapi-wsl] for accelerated transcoding
    volumes:
      - ${UPLOAD_LOCATION}:/data
      - /etc/localtime:/etc/localtime:ro
    env_file:
      - stack.env
    labels:
      - "traefik.enable=true"
      - "traefik.http.routers.immich.entrypoints=https"
      - "traefik.http.routers.immich.tls=true"
      - "traefik.http.routers.immich.rule=Host(`sample.domain.com`)"
      - "traefik.http.services.immich.loadbalancer.server.port=2283"
      - "traefik.docker.network=frontend-immich"

    depends_on:
      - redis
      - database
    environment:
      - TZ=Europe/Berlin
    restart: always
    healthcheck:
      disable: false
    networks:
      - backend-immich
      - frontend-immich

  immich-machine-learning:
    container_name: immich_machine_learning
    # For hardware acceleration, add one of -[armnn, cuda, openvino] to the image tag.
    # Example tag: ${IMMICH_VERSION:-release}-cuda 

    image: ghcr.io/immich-app/immich-machine-learning:${IMMICH_VERSION:-release}
    #image: altran1502/immich-machine-learning:${IMMICH_VERSION:-release}

    # extends: # uncomment this section for hardware acceleration - see https://immich.app/docs/features/ml-hardware-acceleration
    #   file: hwaccel.ml.yml
    #   service: cpu # set to one of [armnn, cuda, openvino, openvino-wsl] for accelerated inference - use the `-wsl` version for WSL2 where applicable
    volumes:
      - immich-model-cache:/cache
    env_file:
      - stack.env
    restart: always
    healthcheck:
      disable: false
    networks:
      - backend-immich

  redis:
    container_name: immich_redis
    image: docker.io/valkey/valkey:8-bookworm@sha256:facc1d2c3462975c34e10fccb167bfa92b0e0dbd992fc282c29a61c3243afb11
    healthcheck:
      test: redis-cli ping || exit 1
    restart: always
    networks:
      - backend-immich

  database:
    container_name: immich_postgres
    image: ghcr.io/immich-app/postgres:14-vectorchord0.4.3-pgvectors0.2.0@sha256:32324a2f41df5de9efe1af166b7008c3f55646f8d0e00d9550c16c9822366b4a
    env_file:
      - stack.env
    environment:
      POSTGRES_PASSWORD: ${DB_PASSWORD}
      POSTGRES_USER: ${DB_USERNAME}
      POSTGRES_DB: ${DB_DATABASE_NAME}
      POSTGRES_INITDB_ARGS: '--data-checksums'
    volumes:
      - ${DB_DATA_LOCATION}:/var/lib/postgresql/data
    restart: always
    networks:
      - backend-immich

volumes:
  immich-model-cache:
    external: true

Your .env content

UPLOAD_LOCATION=/home/sample/immich/library
DB_DATA_LOCATION=/home/sample/immich/postgres-db
IMMICH_VERSION=v1.141.1
REVERSE_GEOCODING_PRECISION=3
DB_PASSWORD=samplepass
DB_USERNAME=postgres
DB_DATABASE_NAME=immich

Reproduction steps

1. Open the Beta Timeline.
2. Scroll through until you see an image that doesn’t match the expected content.
3. Tap/open the incorrect image.
4. The displayed image switches to the correct one.

Relevant log output

Additional information

No response

[mertalev]

What indicator do the impacted thumbnails have? Are they local-only (crossed cloud), merged (cloud with checkmark) or remote-only (empty cloud)?

[Tqqk]

@mertalev All of them have the merged (cloud with checkmark) indicator.

If it helps, this is a screen recording of the issue: https://imgur.com/a/EfFGvTr

[mertalev]

Thanks, that does help. Does the behavior change at all if you force close the app and relaunch it?

[Tqqk]

@mertalev It sadly remains the same. These are the things I tried beside force closing the app:

• Ran Local and Remote sync jobs, Hash asset job
• Cleared File Cache, reset SQLite Database
• Completely cleared the data/reinstall the Immich mobile app