System.InvalidOperationException: An attempt was made to transition a task to a final state when it had already completed.

[sentry]

Sentry Issue: UNITY-EXPLORER-Q3T

System.InvalidOperationException: An attempt was made to transition a task to a final state when it had already completed.
  File "Generics__14.cpp", line 23445, in SetException
  File "il2cpp-codegen.h", line 1217, in InnerProcessCacheAsync
  File "Sentry__5.cpp", line 19411, in InnerProcessCacheAsync
  File "il2cpp-codegen.h", line 792, in Invoke
  File "mscorlib__9.cpp", line 8074, in Invoke
...
(4 additional frame(s) were not displayed)

This issue was automatically created by Sentry via Explorer Alpha Github Issue Creation

[github-actions]

Automated Triage

Issue type	bug
Affected area	Async cache processing
Feature category	Primary — Stability & Crashes
Severity	SEV-2 → 1-high

Reasoning: This is a System.InvalidOperationException crash from Sentry (production) occurring in async task state handling. It falls under the Primary category "Stability & Crashes," where all crashes/freezes require severity classification based on user impact. While the specific condition (attempting to transition a completed task to a final state again) appears to be an edge case affecting some users rather than all users, it is a genuine crash in production that blocks normal execution. This warrants SEV-2 and requires a hotfix. Given the breadth of async operations in the codebase, this should be prioritized for investigation.

Labels applied: bug, 1-high, sentry

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Auto-triaged. If labels are incorrect, update issue triage categories or severity policy and re-run triage.

[github-actions]

Duplicate of #9002. This is the same task state transition error that was previously reported. Please follow #9002 for updates.

[github-actions]

Automated Triage

Issue type	bug
Affected area	Task state management / async operations
Feature category	Primary (Stability & Crashes)
Severity	SEV-2 → 1-high

Reasoning: This is a crash in a Primary category (Stability & Crashes per issue-triage-categories.md). The System.InvalidOperationException indicates a task state management issue in async processing, likely during cache operations in the Sentry integration. Crashes in Primary categories affecting some users meet SEV-2 criteria and require 1-high priority. The duplicate label indicates this is a recurring or related issue already tracked elsewhere — consolidate findings with the original issue.

Labels applied: bug, 1-high, duplicate, sentry

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Auto-triaged. If labels are incorrect, update issue triage categories or severity policy and re-run triage.