Why does my bug keep coming back?

Because the real root cause was never fixed, previous fixes addressed a symptom, fixed only one trigger, or were undone by a later change, so the underlying cause keeps producing the bug. A bug that recurs after being fixed isn't really fixed, it's being temporarily suppressed or partially addressed. The common reasons: (1) symptom fix, the fix addressed a visible symptom (caught an error, masked the effect) without fixing the underlying cause, so the cause keeps generating the bug, (2) partial fix, the fix addressed one path or trigger, but the bug has another path that still hits it (the same underlying cause reached differently), (3) regression, the fix worked, but a later change reintroduced the bug (undid the fix or recreated the condition), (4) wrong diagnosis, the fix targeted the wrong cause, leaving the real one active. In all cases, the root cause persists, so the bug returns. The pattern, the same bug (same signature) recurring, is the signal that you're patching symptoms rather than fixing the cause. To break the cycle, you need the actual root cause, which requires capturing each recurrence's full context to look deeper than the previous shallow fixes. So your bug keeps coming back because the real root cause is unfixed (symptom fix, partial fix, regression, or misdiagnosis), so the underlying cause keeps producing it. Bugnet groups by signature (confirming it's the same recurring bug, not a new one) and captures each recurrence with full context (stack trace, conditions, breadcrumbs), so you can triangulate the actual root cause across recurrences, fix that real cause, and verify per version across multiple releases that it stays gone, breaking the recurrence cycle that symptom-patching perpetuates.

How do I find the root cause of a recurring bug?

Capture every recurrence with full context and analyze across them to find the underlying cause that previous fixes missed, the multiple occurrences give you the data to look deeper than the symptom. Finding the root cause of a recurring bug means going deeper than the previous fixes did, and the recurrences themselves provide the evidence. First, capture each recurrence with full context: the stack trace (where it crashes/fails), device and OS (whether it's configuration-specific), version (whether it correlates with builds), and breadcrumbs (the actions and state leading to it). Group them by signature so you know they're the same bug. Second, analyze across the recurrences: with multiple captured occurrences, look for the common underlying cause, what conditions are always present, what the stack trace consistently shows, what the breadcrumbs reveal about the triggering state. The previous fixes likely addressed a surface symptom or one trigger, so look for what's beneath that, the actual source that keeps producing the bug regardless of the patches. Third, question prior diagnoses: if previous fixes targeted a cause and the bug still recurs, that cause may be wrong or incomplete, so reconsider what's really producing the bug. The recurrences are an asset, each one is more data to triangulate the true cause. So you find the root cause of a recurring bug by capturing every recurrence with full context and analyzing across them for the underlying cause the previous fixes missed, looking deeper than the symptom and questioning prior diagnoses. Bugnet captures each recurrence with stack trace, device, version, and breadcrumbs, grouped by signature, so you have the full evidence across all occurrences to find the actual root cause, the deeper issue that shallow fixes missed, then fix it and verify per version it stays gone, which is how you finally break a recurring bug.

How do I make sure a bug stays fixed?

Fix the root cause (not the symptom), then verify per version across multiple releases that the bug stays gone, ongoing verification is what confirms a fix held and catches a regression that reintroduces it. Making a bug stay fixed has two parts: fixing it right, and confirming it stays fixed. First, fix the root cause: address the actual underlying cause (diagnosed from captured context), not a symptom or one trigger, a root-cause fix is what prevents recurrence, while a symptom fix leaves the cause to produce the bug again. Second, verify the fix worked: confirm per version that the bug dropped on the fixed build (the field data showing it gone), not just that it builds. Third, and crucial for a bug that's recurred before, verify it stays gone across subsequent releases: track the bug's signature per version over multiple builds, so you confirm it doesn't return, either because the original fix was incomplete (it recurs, telling you to dig deeper) or because a later change regresses it (reintroduces it, which per-version monitoring catches immediately so you can re-fix before it spreads). A single build's absence isn't enough for a recurring bug, you need ongoing per-version confirmation. Fourth, guard against regression: when making future changes, be aware of the bug's cause so you don't reintroduce it, and let per-version monitoring catch it if you do. So you make sure a bug stays fixed by fixing the root cause and then verifying per version across multiple releases that it stays gone (catching incomplete fixes and regressions). Bugnet tracks each bug's signature per version, so you can confirm a fix held over multiple releases (not just the next build) and catch immediately if a later change reintroduces the bug (the signature reappearing), which is exactly the ongoing verification a recurring bug needs, the assurance that you fixed the real cause and that it stays fixed, rather than the false confidence of a single build's absence that let it recur before.

What to Do When a Bug Keeps Coming Back

Quick answer: Recognize that previous fixes addressed symptoms not the root cause (or regressed), use captured context to find the actual root cause, fix that, and verify per version that the bug stays gone across releases.

A bug that keeps coming back is telling you something: the real cause was never fixed, or a fix regressed. Breaking the cycle means finding the true root cause and verifying it stays fixed. Here is what to do when a bug keeps coming back.

Recognize Why It Keeps Recurring

A recurring bug means previous fixes didn't address the real cause: they fixed a symptom (so the underlying cause produces the bug again), or fixed one trigger (so another path still hits it), or the fix regressed (a later change reintroduced it). Recognizing that the root cause is unfixed reframes the problem, you need the actual cause, not another patch.

Bugnet groups crashes by signature, so you can see that the recurring bug is the same signature returning, confirming it's the same underlying issue, not a new one. That recognition, the same signature recurring, tells you previous fixes missed the root cause, focusing you on finding the actual cause rather than patching the symptom again.

Find the Actual Root Cause From Captured Context

Find the real cause: capture each recurrence with full context, the stack trace, conditions, and breadcrumbs, and look deeper than before for the underlying cause that keeps producing the bug. The recurrences give you more data points to triangulate the true root cause that previous shallow fixes missed.

Bugnet captures each recurrence with the stack trace, device, version, and breadcrumbs, so you have full context across all occurrences to find the root cause. Multiple captured recurrences let you see the common conditions and the actual cause, the deeper issue that previous fixes addressed only superficially, so you can fix it for real this time.

Fix the Root Cause and Verify It Stays Gone

Fix the actual root cause, not the symptom, then verify per version across multiple releases that the bug stays gone. A recurring bug isn't truly fixed until you've confirmed it doesn't return on subsequent builds, so ongoing per-version verification is what proves you finally fixed the real cause.

Bugnet tracks the signature per version, so you can confirm the bug stays gone across releases, not just the next build, but ongoing. This is how you verify you finally fixed the root cause, the signature absent across multiple versions confirms the recurrence is broken, whereas a single build's absence (which fooled you before) isn't enough for a bug that keeps coming back.

When a bug keeps coming back, recognize previous fixes missed the root cause, use captured context across recurrences to find the actual cause, fix that, and verify per version across releases that it stays gone. A recurring bug means the real cause was never fixed.