fix(replay): Preserve interaction spans during app restart to fix replay capture #5386

antonis · 2025-11-19T10:30:38Z

📢 Type of change

Bugfix
New feature
Enhancement
Refactoring

📜 Description

Added an isFromRunApplication flag to distinguish between:

Normal navigation (user taps navigation button) → Cancel interaction spans as before
App restart (error-triggered via runApplication) → Preserve interaction spans for replay capture

The interaction span now remains alive during error processing, giving the native SDK time to:

Capture the replay
Associate it with the error event
Access the full span context

💡 Motivation and Context

Fixes #5074

The issue was originally reported with buttons using the sentry-label prop, which enables user interaction tracing. The sentry-label itself isn't the cause, but it's necessary for reproduction because it ensures an interaction span is created. Without user interaction tracing enabled, the bug wouldn't manifest the same way.

The actual root cause is that ANY interaction span (labeled or not) gets prematurely cancelled when an error triggers an app restart.

💚 How did you test it?

CI, Manual

📝 Checklist

I added tests to verify changes
No new PII added or SDK only sends newly added PII if sendDefaultPII is enabled
I updated the docs if needed.
I updated the wizard if needed.
All tests passing
No breaking changes

🔮 Next steps

…lay capture

github-actions · 2025-11-19T10:49:16Z

Android (new) Performance metrics 🚀

	Plain	With Sentry	Diff
Startup time	370.63 ms	398.38 ms	27.75 ms
Size	43.94 MiB	48.85 MiB	4.91 MiB

Baseline results on branch: main

Startup times

Revision	Plain	With Sentry	Diff
`5ee3314`+dirty	358.69 ms	394.00 ms	35.31 ms
`88890fe`+dirty	328.30 ms	319.85 ms	-8.45 ms
`c7f264b`+dirty	356.98 ms	407.46 ms	50.48 ms
`e2fa43d`+dirty	326.56 ms	372.88 ms	46.32 ms
`e07935d`+dirty	380.10 ms	377.48 ms	-2.62 ms
`af9331b`+dirty	374.42 ms	425.68 ms	51.26 ms
`4167e15`+dirty	311.62 ms	336.91 ms	25.29 ms
`2b89ce9`+dirty	372.22 ms	417.06 ms	44.84 ms
`4604da9`+dirty	292.27 ms	314.16 ms	21.90 ms
`d751a5d`+dirty	341.61 ms	403.06 ms	61.45 ms

App size

Revision	Plain	With Sentry	Diff
`5ee3314`+dirty	7.15 MiB	8.43 MiB	1.28 MiB
`88890fe`+dirty	7.15 MiB	8.44 MiB	1.28 MiB
`c7f264b`+dirty	7.15 MiB	8.41 MiB	1.26 MiB
`e2fa43d`+dirty	7.15 MiB	8.42 MiB	1.27 MiB
`e07935d`+dirty	43.94 MiB	48.82 MiB	4.88 MiB
`af9331b`+dirty	7.15 MiB	8.41 MiB	1.26 MiB
`4167e15`+dirty	7.15 MiB	8.46 MiB	1.30 MiB
`2b89ce9`+dirty	7.15 MiB	8.41 MiB	1.26 MiB
`4604da9`+dirty	7.15 MiB	8.46 MiB	1.31 MiB
`d751a5d`+dirty	7.15 MiB	8.41 MiB	1.26 MiB

Previous results on branch: antonis/fix-replay-capture-during-app-restart

Startup times

Revision	Plain	With Sentry	Diff
`145273c`+dirty	367.51 ms	389.36 ms	21.85 ms
`28c74e7`+dirty	385.33 ms	421.10 ms	35.78 ms

App size

Revision	Plain	With Sentry	Diff
`145273c`+dirty	43.94 MiB	48.85 MiB	4.91 MiB
`28c74e7`+dirty	43.94 MiB	48.85 MiB	4.91 MiB

github-actions · 2025-11-19T10:49:55Z

Android (legacy) Performance metrics 🚀

	Plain	With Sentry	Diff
Startup time	405.09 ms	413.06 ms	7.97 ms
Size	43.75 MiB	48.02 MiB	4.27 MiB

Baseline results on branch: main

Startup times

Revision	Plain	With Sentry	Diff
`161947d`+dirty	393.26 ms	403.00 ms	9.74 ms
`20daa0a`	359.51 ms	374.90 ms	15.39 ms
`e07935d`+dirty	448.82 ms	489.10 ms	40.29 ms
`2b89ce9`	413.69 ms	442.58 ms	28.89 ms
`8d89cc9`+dirty	537.83 ms	536.02 ms	-1.81 ms
`459a438`+dirty	417.09 ms	406.52 ms	-10.57 ms
`23080e5`	384.85 ms	382.57 ms	-2.28 ms
`3e0a5f9`	401.72 ms	394.98 ms	-6.74 ms
`c4e097a`	338.06 ms	439.36 ms	101.30 ms
`21c9e75`	450.39 ms	452.92 ms	2.53 ms

App size

Revision	Plain	With Sentry	Diff
`161947d`+dirty	17.75 MiB	19.70 MiB	1.95 MiB
`20daa0a`	17.75 MiB	20.15 MiB	2.41 MiB
`e07935d`+dirty	43.75 MiB	47.99 MiB	4.24 MiB
`2b89ce9`	17.75 MiB	19.68 MiB	1.94 MiB
`8d89cc9`+dirty	17.75 MiB	19.68 MiB	1.94 MiB
`459a438`+dirty	17.75 MiB	19.70 MiB	1.95 MiB
`23080e5`	17.75 MiB	19.68 MiB	1.94 MiB
`3e0a5f9`	17.75 MiB	20.15 MiB	2.41 MiB
`c4e097a`	17.75 MiB	19.68 MiB	1.94 MiB
`21c9e75`	17.75 MiB	20.15 MiB	2.41 MiB

Previous results on branch: antonis/fix-replay-capture-during-app-restart

Startup times

Revision	Plain	With Sentry	Diff
`145273c`+dirty	422.73 ms	439.27 ms	16.54 ms
`28c74e7`+dirty	405.00 ms	414.74 ms	9.74 ms

App size

Revision	Plain	With Sentry	Diff
`145273c`+dirty	43.75 MiB	48.02 MiB	4.27 MiB
`28c74e7`+dirty	43.75 MiB	48.02 MiB	4.27 MiB

github-actions · 2025-11-19T10:57:10Z

iOS (legacy) Performance metrics 🚀

	Plain	With Sentry	Diff
Startup time	1201.77 ms	1210.09 ms	8.32 ms
Size	3.41 MiB	4.58 MiB	1.17 MiB

Baseline results on branch: main

Startup times

Revision	Plain	With Sentry	Diff
`e2fa43d`+dirty	1216.04 ms	1232.65 ms	16.61 ms
`083f560`+dirty	1227.33 ms	1242.02 ms	14.69 ms
`c4e097a`+dirty	1229.09 ms	1242.61 ms	13.53 ms
`df83aad`+dirty	1187.20 ms	1190.55 ms	3.36 ms
`af9331b`+dirty	1233.61 ms	1230.50 ms	-3.11 ms
`8d89cc9`+dirty	1222.92 ms	1239.43 ms	16.51 ms
`955f2eb`+dirty	1235.06 ms	1253.88 ms	18.81 ms
`652f785`+dirty	1219.66 ms	1223.62 ms	3.96 ms
`818a608`+dirty	1205.76 ms	1208.00 ms	2.24 ms
`136effd`+dirty	1211.60 ms	1218.33 ms	6.72 ms

App size

Revision	Plain	With Sentry	Diff
`e2fa43d`+dirty	2.63 MiB	3.81 MiB	1.18 MiB
`083f560`+dirty	2.63 MiB	4.00 MiB	1.36 MiB
`c4e097a`+dirty	2.63 MiB	3.87 MiB	1.24 MiB
`df83aad`+dirty	3.41 MiB	4.57 MiB	1.16 MiB
`af9331b`+dirty	2.63 MiB	3.91 MiB	1.28 MiB
`8d89cc9`+dirty	2.63 MiB	3.96 MiB	1.33 MiB
`955f2eb`+dirty	2.63 MiB	3.98 MiB	1.35 MiB
`652f785`+dirty	3.41 MiB	4.57 MiB	1.16 MiB
`818a608`+dirty	2.63 MiB	3.91 MiB	1.28 MiB
`136effd`+dirty	3.41 MiB	4.57 MiB	1.16 MiB

Previous results on branch: antonis/fix-replay-capture-during-app-restart

Startup times

Revision	Plain	With Sentry	Diff
`28c74e7`+dirty	1216.27 ms	1213.66 ms	-2.61 ms
`145273c`+dirty	1184.73 ms	1192.98 ms	8.24 ms

App size

Revision	Plain	With Sentry	Diff
`28c74e7`+dirty	3.41 MiB	4.58 MiB	1.17 MiB
`145273c`+dirty	3.41 MiB	4.58 MiB	1.17 MiB

github-actions · 2025-11-19T10:57:31Z

iOS (new) Performance metrics 🚀

	Plain	With Sentry	Diff
Startup time	1215.89 ms	1235.17 ms	19.28 ms
Size	3.41 MiB	4.58 MiB	1.17 MiB

Baseline results on branch: main

Startup times

Revision	Plain	With Sentry	Diff
`e2fa43d`+dirty	1224.43 ms	1235.40 ms	10.98 ms
`083f560`+dirty	1215.27 ms	1231.96 ms	16.69 ms
`c4e097a`+dirty	1231.35 ms	1246.91 ms	15.56 ms
`df83aad`+dirty	1202.06 ms	1203.83 ms	1.77 ms
`af9331b`+dirty	1230.08 ms	1233.24 ms	3.16 ms
`8d89cc9`+dirty	1232.35 ms	1228.53 ms	-3.82 ms
`955f2eb`+dirty	1225.78 ms	1239.27 ms	13.49 ms
`652f785`+dirty	1216.42 ms	1212.21 ms	-4.21 ms
`818a608`+dirty	1218.84 ms	1223.18 ms	4.34 ms
`136effd`+dirty	1214.53 ms	1223.67 ms	9.13 ms

App size

Revision	Plain	With Sentry	Diff
`e2fa43d`+dirty	3.19 MiB	4.38 MiB	1.19 MiB
`083f560`+dirty	3.19 MiB	4.56 MiB	1.38 MiB
`c4e097a`+dirty	3.19 MiB	4.44 MiB	1.25 MiB
`df83aad`+dirty	3.41 MiB	4.57 MiB	1.16 MiB
`af9331b`+dirty	3.19 MiB	4.48 MiB	1.29 MiB
`8d89cc9`+dirty	3.19 MiB	4.53 MiB	1.35 MiB
`955f2eb`+dirty	3.19 MiB	4.55 MiB	1.36 MiB
`652f785`+dirty	3.41 MiB	4.57 MiB	1.16 MiB
`818a608`+dirty	3.19 MiB	4.48 MiB	1.29 MiB
`136effd`+dirty	3.41 MiB	4.57 MiB	1.16 MiB

Previous results on branch: antonis/fix-replay-capture-during-app-restart

Startup times

Revision	Plain	With Sentry	Diff
`28c74e7`+dirty	1217.37 ms	1214.96 ms	-2.41 ms
`145273c`+dirty	1217.34 ms	1219.49 ms	2.15 ms

App size

Revision	Plain	With Sentry	Diff
`28c74e7`+dirty	3.41 MiB	4.58 MiB	1.17 MiB
`145273c`+dirty	3.41 MiB	4.58 MiB	1.17 MiB

CHANGELOG.md

lucas-zimerman · 2025-11-19T13:29:45Z

@sentry review

packages/core/src/js/tracing/span.ts

packages/core/src/js/tracing/reactnavigation.ts

lucas-zimerman · 2025-11-19T13:37:54Z

Overall looking good! I left a few questions in regard to the naming and description of the added boolean flag.

alwx

I'd say isAppRestarted sounds a bit more natural to me but that's probably a personal thing. Otherwise everything looks fine!

antonis added 2 commits November 19, 2025 11:29

fix(replay): Preserve interaction spans during app restart to fix rep…

e572a88

…lay capture

Adds changelog

e8e9f2e

antonis added the ready-to-merge Triggers the full CI test suite label Nov 19, 2025

antonis mentioned this pull request Nov 19, 2025

Unable to get replay session when integrating both reactNavigationIntegration() & mobileReplayIntegration() #5074

Closed

antonis marked this pull request as ready for review November 19, 2025 12:02

antonis requested review from alwx and lucas-zimerman as code owners November 19, 2025 12:02

antonis commented Nov 19, 2025

View reviewed changes

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Fix changelog spacing

eb57302

sentry bot reviewed Nov 19, 2025

View reviewed changes

packages/core/src/js/tracing/span.ts Show resolved Hide resolved

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lucas-zimerman reviewed Nov 19, 2025

View reviewed changes

packages/core/src/js/tracing/reactnavigation.ts Outdated Show resolved Hide resolved

lucas-zimerman reviewed Nov 19, 2025

View reviewed changes

packages/core/src/js/tracing/reactnavigation.ts Outdated Show resolved Hide resolved

ref: rename to isAppRestart

6d12e05

alwx approved these changes Nov 19, 2025

View reviewed changes

antonis added 2 commits November 19, 2025 15:12

Adds comment for the startIdleNavigationSpan params

9ea77cd

Call clearActiveSpanFromScope in all cases

fe5b5c1

antonis merged commit 7e9c42c into main Nov 20, 2025
75 checks passed

antonis deleted the antonis/fix-replay-capture-during-app-restart branch November 20, 2025 08:23

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fix(replay): Preserve interaction spans during app restart to fix replay capture #5386

fix(replay): Preserve interaction spans during app restart to fix replay capture #5386

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antonis commented Nov 19, 2025 • edited Loading Uh oh! There was an error while loading. Please reload this page.

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📢 Type of change

📜 Description

💡 Motivation and Context

💚 How did you test it?

📝 Checklist

🔮 Next steps

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Android (new) Performance metrics 🚀

Baseline results on branch: main

Startup times

App size

Previous results on branch: antonis/fix-replay-capture-during-app-restart

Startup times

App size

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Android (legacy) Performance metrics 🚀

Baseline results on branch: main

Startup times

App size

Previous results on branch: antonis/fix-replay-capture-during-app-restart

Startup times

App size

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iOS (legacy) Performance metrics 🚀

Baseline results on branch: main

Startup times

App size

Previous results on branch: antonis/fix-replay-capture-during-app-restart

Startup times

App size

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iOS (new) Performance metrics 🚀

Baseline results on branch: main

Startup times

App size

Previous results on branch: antonis/fix-replay-capture-during-app-restart

Startup times

App size

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lucas-zimerman commented Nov 19, 2025

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