Configure <index set> field types page does not load

[drewmiranda-gl]

When opening the Configure field types page, i receive an error and the index fields never load:

/api/system/indices/index_sets/types/63068dae8a735a37e8d535b7?page=1&per_page=100&sort=type&order=desc

{
    "type": "ApiError",
    "message": "Cannot read field \"value\" because \"<parameter1>\" is null"
}

This appears to have happened after increasing the number of fields on the page (note the page=100 in the URI)

Expected Behavior

Configure field types page loads without error

Current Behavior

Configure field types page does not load

Possible Solution

Steps to Reproduce (for bugs)

Context

Your Environment

• Graylog Version: 6.0.3
• Java Version: Bundled
• OpenSearch Version: 2.12.0
• MongoDB Version: 6.0.15
• Operating System: Ubuntu Server 22.04 LTS
• Browser version: Google Chrome Version 126.0.6478.62 (Official Build) (arm64)

Please let me know if there are any questions.

[drewmiranda-gl]

Quick bit of troubleshooting, if i load /api/system/indices/index_sets/types/63068dae8a735a37e8d535b7 and remove the sort argument, the API endpiont does load.

If i had to guess i would say its caused by some fields having type: null

For example:

{
    "field_name": "source_port",
    "type": null,
    "origin": "INDEX",
    "is_reserved": false
}

Unclear what is going on here. Will need to investigate further.