[BUG] ReferenceError: _ is not defined in Logs Explorer

[ehicks-portrait]

What is the bug?
When running a PPL search in Logs > Event Explorer, I get the following JavaScript console error. Results appear in the response for the /search HTTP request, but the UI does not show any events.

observabilityDashboards.plugin.js:1 ReferenceError: _ is not defined
    at addSchemaRowMapping (observabilityDashboards.plugin.js:1:12895074)
    at dispatchOnGettingHis (observabilityDashboards.plugin.js:1:12895667)
    at observabilityDashboards.plugin.js:1:12901029
    at Object.next (osd-ui-shared-deps.js:1:7836889)
    at asyncGeneratorStep (observabilityDashboards.plugin.js:2:1214029)
    at _next (observabilityDashboards.plugin.js:2:1214344)
    at observabilityDashboards.plugin.js:2:1214496
    at new Promise (<anonymous>)
    at observabilityDashboards.plugin.js:2:1214255
    at observabilityDashboards.plugin.js:1:12901656

How can one reproduce the bug?
Steps to reproduce the behavior:

1. Go to Observability > Logs > Event Explorer.
2. Enter an index pattern (e.g. source=ss4o_logs-otel-*.
3. Click "Run."

What is the expected behavior?
Expected results to show up in the UI.

What is your host/environment?

• OS: Debian Linux
• OpenSearch version: 3.5.0
• Lucense version: 10.3.2
• Plugin: observabilityDashboards@3.5.0
• Browser: Chrome 145.0.7632.162

Do you have any screenshots?

[ehicks-portrait]

It looks as though lodash isn't being included in the packaged JS source.

[ehicks-portrait]

Tried a fresh install on a new server and getting the same error:

[asiminiceanu]

I have the same problem in 3.5.0. I have downgraded to 3.4.0 and there it works.

[andrross]

Catch All Triage - 1

@ps48 @anirudha Can you help find a maintainer to take a look at this? Thanks!