Mobile Insights: Avg Cold/Warm Start widgets fail to trigger network requests or display data

[serglom21]

Environment

SaaS (https://sentry.io/)

Steps to Reproduce

On the Mobile Insights Overview page, selecting the "Avg Cold Start" or "Avg Warm Start" metrics results in an empty state (No Data), even when app start data is confirmed to be captured for the project.

When navigating to the Mobile Insights Overview (/insights/mobile/), there is a discrepancy in how different widgets fetch data:

Most Time-Consuming Domains: Correctly triggers a request to /api/0/organizations/{org_slug}/events/ and displays data.

Avg Cold/Warm Start: Selecting these metrics fails to initiate any network request to the events endpoint.

This appears to be a frontend-side issue where the widget selection is not triggering the necessary data fetch, despite the data being available in the Mobile Vitals view.

Expected Result

The UI should trigger a request to the events API to fetch app start metrics and populate the widget.

Actual Result

No network request is initiated when switching to Cold/Warm start metrics, and the widget displays a "No Data" or empty state.

Product Area

Insights

Link

No response

DSN

No response

Version

No response

[linear]

ENG-6284

[getsantry]

Assigning to @getsentry/support for routing ⏲️

[getsantry]

Routing to @getsentry/product-owners-insights for triage ⏲️

[bcoe]

@serglom21, @gggritso is in the process of re-platforming these pages on the Dashboard platform.

Could you share some examples with him internally and see if the problem is happening on these new pages?