Stacking Pixel images

[eveiscoull]

Hey folks, I'm at a loss on stacking Pixel images. I've tried the following variations of the criteria at the bottom of the Custom criteria page:

[
  {
    "key": "originalFileName",
    "regex": {
      "key": "(PXL|IMG)_(\\d{8})_\\d+",
      "index": 2
    }
  }
]

1. (PXL|IMG)_(\\d{8})_\\d+ and index 2
2. (PXL|IMG)_(\\d{8})_(\\d+) and index 3
3. ^(PXL|IMG)_(\d{8})_(\d+)(?:\..+)?$ and index 3
4. (PXL|IMG)_(\d{8})_(\d+).* and index 3
5. ^(PXL|IMG)_(\d{8})_(\d+)\.RAW-\d and index 3
6. ^(PXL|IMG)_(\d{8})_(\d+)\.RAW-\d.* and index 3
7. PXL_(\d{8})_(\d+)\.RAW-\d{2}.* and index 3
8. PXL_(\d{8})_(\d+) and index 3
9. PXL_(\\d{8})_(\\d{9}) and index 2

I tried all of them with \\ and single \, none have worked.

These are the file names as examples: PXL_20250731_152626855.RAW-01.COVER.jpg and PXL_20250731_152626855.RAW-02.ORIGINAL.DNG.

It manages to stack PXL_20250628_123043121.RAW-01.COVER~2.jpg and PXL_20250628_123043121.RAW-01.COVER.jpg, but not the ones above.

Anyone got the same issue and/or managed to get it working? Any assistance is greatly appreciated! 😊

---

EDIT: Forgot to include my .env file:

DRY_RUN=false
RESET_STACKS=true
CONFIRM_RESET_STACK="I acknowledge all my current stacks will be deleted and new one will be created"
REPLACE_STACKS=true
REMOVE_SINGLE_ASSET_STACKS=true
PARENT_EXT_PROMOTE=.jpg,.dng
WITH_ARCHIVED=false
WITH_DELETED=false
LOG_LEVEL=debug
LOG_FORMAT=json
# Run mode settings
RUN_MODE=once  # Options: once, cron
CRON_INTERVAL=60  # in seconds, only used if RUN_MODE=cron

CRITERIA='[
  {
    "key": "originalFileName",
    "regex": {
      "key": "(PXL|IMG)_(\d{8})_(\d+)",
      "index": 3
    }
  },
  {
    "key": "localDateTime",
    "delta": {
      "milliseconds": 1000
    }
  }
]'

[Majorfi]

Hello @coolssor !

Do you have a way to provide also the timestamp of these photos? With some devices, a small difference might exist and might break the "localDateTime" reference. I just want to exclude this from the equation before checking more!

Thanks!

[eveiscoull]

So sorry for the wait, here's the EXIF data via exiftool:

PXL_20250731_152626855.RAW-01.COVER.jpg

root@immich:/opt/immich/upload/library/coolssor/2025/07# exiftool PXL_20250731_152626855.RAW-01.COVER.jpg | grep 2025
File Name                       : PXL_20250731_152626855.RAW-01.COVER.jpg
File Modification Date/Time     : 2025:07:31 16:26:34+01:00
File Access Date/Time           : 2025:08:23 14:09:07+01:00
File Inode Change Date/Time     : 2025:08:16 18:21:41+01:00
Modify Date                     : 2025:07:31 16:26:26
Date/Time Original              : 2025:07:31 16:26:26
Create Date                     : 2025:07:31 16:26:26
GPS Date Stamp                  : 2025:07:31
Create Date                     : 2025:07:31 16:26:26.855+01:00
Date/Time Original              : 2025:07:31 16:26:26.855+01:00
Modify Date                     : 2025:07:31 16:26:26.855+01:00
GPS Date/Time                   : 2025:07:31 15:26:16Z

PXL_20250731_152626855.RAW-02.ORIGINAL.dng

root@immich:/opt/immich/upload/library/coolssor/2025/07# exiftool PXL_20250731_152626855.RAW-02.ORIGINAL.dng | grep 2025
File Name                       : PXL_20250731_152626855.RAW-02.ORIGINAL.dng
File Modification Date/Time     : 2025:07:31 16:26:34+01:00
File Access Date/Time           : 2025:08:18 19:37:44+01:00
File Inode Change Date/Time     : 2025:08:16 18:21:42+01:00
Modify Date                     : 2025:07:31 16:26:27
Date/Time Original              : 2025:07:31 16:26:27
Create Date                     : 2025:07:31 16:26:27
GPS Date Stamp                  : 2025:07:31
Create Date                     : 2025:07:31 16:26:27.169007+01:00
Date/Time Original              : 2025:07:31 16:26:27.169007+01:00
Modify Date                     : 2025:07:31 16:26:27.169007+01:00
GPS Date/Time                   : 2025:07:31 15:26:16Z

[Majorfi]

Could you share some pictures that are not stacking correctly with me ? I cannot find the why and I have no pixel to test that: immich@quub.tech

[virtualadept]

If you need more example pictures let me know. I'm having the same issue with a Pixel 9 XL.

[Majorfi]

Yes please

[psla]

Attaching mine. immich-20250830_221753.zip

I have not played with the regexes at all.

Also, my log is full of

ERRO Error modifying stack: error response: 400 Bad Request - {"message":"Not found or no asset.update access","error":"Bad Request","statusCode":400,"correl
ERRO Error modifying stack: error modifying stack: error response: 400 Bad Request - {"message":"Not found or no asset.update access","error":"Bad Request","

so it's possible they didn't get stacked for other reason.