Metrics should show for imported OTEL data older than 12 hours

[SteffenZeidler]

Is there an existing issue for this?

• I have searched the existing issues

Is your feature request related to a problem? Please describe the problem.

When importing OpenTelemetry (OTEL) data into the Aspire Dashboard, metrics are not displayed on the Metrics page if the imported data is older than 12 hours.
This makes it difficult to analyze historical datasets, even though the data import itself appears to succeed.

Describe the solution you'd like

When importing OTEL data, the dashboard could:
Automatically adjust the time range to match the imported dataset, for example:
Set the end time to the latest (max) timestamp found in the imported data.

Alternatively:
Detect when no data is present in the current time window and suggest adjusting the time range.
Provide a "data time range" filter.

Additional context

No response

[joperezr]

🤖 Aspire triage pass — 2026-06-03 14:20 UTC

Area: area-dashboard
Kind: feature-request
Repro: partial — behavior described in issue body (no minimal repro attached)
Affected version(s): not specified by reporter (latest: 13.4.0)
Severity: S4 — UX/discoverability gap; workaround exists (user can manually widen the dashboard time range)

Urgency: ⚪ backlog — no milestone
Reason: feature-request with a reasonable manual workaround; not a regression in 13.4

Suggested owner(s): @JamesNK (score 30+), backup @adamint (score ~5)
Evidence:

• @JamesNK authored the vast majority of recent merged area-dashboard PRs in the last 90 days (e.g. Fix telemetry streaming to wait for resource to appear #17821, Add timestamp search qualifier for telemetry filtering #17816, Improve dashboard summary log formatting #17595, Improve text searching with structured filtering #17482, Update blazor.web.js to latest version in 11p4 #17445, Add install CLI link to AI Agents dialog descriptions #17331, Fix stack overflow when opening child dialog from notification center #17261, Fix Manage button overlapping Close button in Settings dialog at high zoom #17258, Always log dashboard startup summary across auth modes #17206, Keep canceled resource commands in dashboard notification center #17204, Calculate VerticalThreshold dynamically based on menu/popover content #17196, Improve version log messages in CLI, AppHost and dashboard #17163, Fix flaky test: Subscription_MultipleUpdates_MinExecuteIntervalApplied #16975, Fix traces != (not equals) filter returning empty results #16932, Enable static web assets in all environments for dashboard #16931, Add AI Agents dialog to dashboard header #16869, [release/13.3] Fix notification action closure over scoped services #16763, [release/13.3] Fix dashboard error in .NET 11 preview 4 #16761, …)
• @JamesNK is assigned on numerous recently completed area-dashboard issues (e.g. Streaming Http Telemetry API doesn't work if you start streaming before telemetry arrives. #17802, Dashboard resource action menu can overflow viewport without scrolling #16894, Cannot close the Copilot panel in the Dashboard #16880, [AspireE2E] When clicking the View Response button on the Notifications Center after refreshing the browser, an error "System.ObjectDisposedException: Cannot access a disposed object." occurred in console panel #16594, [AspireE2E] There are some error “Uncaught RangeError: Maximum call stack size exceeded” when clicking the View Response button on the Notifications Center #16593, An unhandled error has occurred on dotnet 11 preview 3 #16340, aspire otel standalone dashboard UX is confusing around --dashboard-url and --enable-api #16236, Improve startup display and logging for the standalone dashboard container #16095, When started under isolated mode, no Traces and metrics are displayed in the Aspire dashboard #16037, aspire cli commands don't support aspire-dashboard (possibly all hidden resources) #16013, Dashboard: Use persistent notification pattern for command results instead of modal dialog #15648, Resource menu disappears behind the browser bottom #15173, Add a dashboard API and CLI commands to export/import traces/logs/metrics #14820, list_traces MCP tool doesn't work well with deep spans #14580, DASHBOARD__MCP__DISABLED true doesn't disable unsecured warnings #14532, GenAI telemetry visualization for tool calls should use relaxed string escaping #14444)
• @adamint has merged/closed several recent area-dashboard items (Fix language dropdown arrow-key behavior and duplicate zh-CN entry in dashboard settings #16094 / Follow-up: Unresolved issues from PR #17089 (waiting dependency details in dashboard) #17244, [13.3] State which resources are being waited on in Waiting state detail #16622, Dashboard: Traces filter with '!=' (not equals) operator filters out everything #16554, Browser Token not working on dashboard over HTTP #16067, Arrow keys in language dropdown list in dashboard settings close the list #15897, Long Command names can overflow Commands submenu #15443, dashboardUrl is wrong in aspire describe #15171) as backup

Confidence: high
Needs human?: no

Dry-run mode — no labels or milestone applied. Reply /triage apply to promote, or edit and reapply.

[SteffenZeidler]

workaround exists (user can manually widen the dashboard time range)

Version 13.4.2
There is no workaround. Dashboard metrics time range has last 12 hours limit.