Navigation bug when switching between C# lessons with Sandbox open #183

New Issue

2026-05-22T18:50:17Z

Zhekrom commented

2026-05-22 18:50:17 +00:00

Title: Navigation issues when switching between C# lessons with Sandbox open
Severity: Medium
Mode: C# Section
Lesson ID / File: C# lesson navigation + Sandbox
Environment: Browser (specify version), OS (specify version)
Date/Time: 2026-05-22

Source Code

(Not applicable � navigation/UI state issue)

Steps to Reproduce

1. Open the Sandbox in a C# lesson.
2. Navigate to a different C# lesson.
3. Observe the top navigation indicator.
4. Try to navigate back to the Sandbox.

Expected Output

When switching lessons, the navigation indicator should update to reflect the current active section.

Actual Output

When navigating to another lesson after using the Sandbox, the lesson content loads correctly but the top navigation indicator still shows "Sandbox" as the active section. To access the Sandbox again, the user must first click "Lesson" to clear the stuck state, and only then can they navigate to the Sandbox properly.

Suggested Priority

Medium ? Does not block functionality but creates confusing navigation state. The indicator shows incorrect active section and adds unnecessary steps to access the Sandbox.

Additional Notes

This appears to be a navigation state management bug where the active section indicator is not properly updated when switching from the Sandbox view to a different lesson.

Title: Navigation issues when switching between C# lessons with Sandbox open Severity: Medium Mode: C# Section Lesson ID / File: C# lesson navigation + Sandbox Environment: Browser (specify version), OS (specify version) Date/Time: 2026-05-22 Source Code (Not applicable � navigation/UI state issue) Steps to Reproduce 1. Open the Sandbox in a C# lesson. 2. Navigate to a different C# lesson. 3. Observe the top navigation indicator. 4. Try to navigate back to the Sandbox. Expected Output When switching lessons, the navigation indicator should update to reflect the current active section. Actual Output When navigating to another lesson after using the Sandbox, the lesson content loads correctly but the top navigation indicator still shows "Sandbox" as the active section. To access the Sandbox again, the user must first click "Lesson" to clear the stuck state, and only then can they navigate to the Sandbox properly. Suggested Priority Medium ? Does not block functionality but creates confusing navigation state. The indicator shows incorrect active section and adds unnecessary steps to access the Sandbox. Additional Notes This appears to be a navigation state management bug where the active section indicator is not properly updated when switching from the Sandbox view to a different lesson.

Screenshot 2026-05-22 145028.png

229 KiB

Screenshot 2026-05-22 145020.png

17 KiB

Zhekrom changed title from ~~Navigation issues when switching between C# lessons with Sandbox open~~ to Navigation bug when switching between C# lessons with Sandbox open

2026-05-22 18:50:41 +00:00

spikerj commented

2026-06-08 16:27:06 +00:00

Fix submitted in spikersoft-angular PR #16.

Root cause: Toggling to the Sandbox keeps the lesson selected and only clears ?lessonId from the URL. Re-selecting that same lesson then hit the route effect's dedupe guard (selectedLessonNumber() === requested), which returned early before the mode could be restored — so the Lesson/Sandbox indicator stayed stuck on "Sandbox" while lesson content was shown.

Fix: The already-selected branch now restores mode = 'lesson' when the matched lesson is unlocked. Added a regression spec (language-runner-mode-sync.spec.ts) that drives a mutable query-param subject to reproduce the toggle → re-navigation sequence and verifies the mode recovers.

Will close once the PR merges.

Fix submitted in `spikersoft-angular` PR #16. **Root cause:** Toggling to the Sandbox keeps the lesson selected and only clears `?lessonId` from the URL. Re-selecting that same lesson then hit the route effect's dedupe guard (`selectedLessonNumber() === requested`), which returned early before the mode could be restored — so the Lesson/Sandbox indicator stayed stuck on "Sandbox" while lesson content was shown. **Fix:** The already-selected branch now restores `mode = 'lesson'` when the matched lesson is unlocked. Added a regression spec (`language-runner-mode-sync.spec.ts`) that drives a mutable query-param subject to reproduce the toggle → re-navigation sequence and verifies the mode recovers. Will close once the PR merges.

spikerj closed this issue

2026-06-09 14:31:08 +00:00

spikerj referenced this issue

2026-07-08 04:18:34 +00:00

art_pipe observability activation: propagate JAEGER_ENDPOINT/SEQ_URL into the worker subprocess (#428) #459

spikerj referenced this issue

2026-07-08 04:27:46 +00:00

art_pipe observability activation: propagate JAEGER_ENDPOINT/SEQ_URL into the worker subprocess (#428) #459

spikerj referenced this issue

2026-07-08 04:29:29 +00:00

Epic: End-to-end trace + log correlation for the art_pipe native-microservice integration (Jaeger + Seq) #428

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