Sentry: crash_reporting.go:432: cdc ux violation: detected timestamp 1768330935.755329519,1 that is less than or equal to the local frontier 1768330935.755329519,1. (1) attached stack trace -- stack...

This issue was auto filed by Sentry. It represents a crash or reported error on a live cluster with telemetry enabled.

Sentry Link: [https://cockroach-labs.sentry.io/issues/7188895236/?referrer=webhooks_plugin](https://cockroach-labs.sentry.io/issues/7188895236/?referrer=webhooks_plugin)

Panic Message:

```
crash_reporting.go:432: cdc ux violation: detected timestamp 1768330935.755329519,1 that is less than or equal to the local frontier 1768330935.755329519,1.
(1) attached stack trace
-- stack trace:
| github.com/cockroachdb/cockroach/pkg/util/log/logcrash.ReportOrPanic
| pkg/util/log/logcrash/crash_reporting.go:432
| github.com/cockroachdb/cockroach/pkg/ccl/changefeedccl.(*kvEventToRowConsumer).encodeAndEmit
| pkg/ccl/changefeedccl/event_processing.go:418
| github.com/cockroachdb/cockroach/pkg/ccl/changefeedccl.(*kvEventToRowConsumer).ConsumeEvent
| pkg/ccl/changefeedccl/event_processing.go:398
| github.com/cockroachdb/cockroach/pkg/ccl/changefeedccl.(*changeAggregator).tick
| pkg/ccl/changefeedccl/changefeed_processors.go:837
| github.com/cockroachdb/cockroach/pkg/ccl/changefeedccl.(*changeAggregator).Next
| pkg/ccl/changefeedccl/changefeed_processors.go:761
| github.com/cockroachdb/cockroach/pkg/sql/execinfra.Run
| pkg/sql/execinfra/base.go:193
| github.com/cockroachdb/cockroach/pkg/sql/execinfra.(*ProcessorBaseNoHelper).Run
| pkg/sql/execinfra/processorsbase.go:746
| github.com/cockroachdb/cockroach/pkg/sql/flowinfra.(*FlowBase).StartInternal.func1
| pkg/sql/flowinfra/flow.go:508
| runtime.goexit
| src/runtime/asm_amd64.s:1700
Wraps: (2) cdc ux violation: detected timestamp 1768330935.755329519,1 that is less than or equal to the local frontier 1768330935.755329519,1.
Error types: (1) *withstack.withStack (2) *errutil.leafError
-- report composition:
*errutil.leafError: cdc ux violation: detected timestamp 1768330935.755329519,1 that is less than or equal to the local frontier 1768330935.755329519,1.
crash_reporting.go:432: *withstack.withStack (top exception)
```

Stacktrace (expand for inline code snippets):

[src/runtime/asm_amd64.s#L1699-L1701](src/runtime/asm_amd64.s#L1699-L1701)
[pkg/sql/flowinfra/flow.go#L507-L509](pkg/sql/flowinfra/flow.go#L507-L509)
[pkg/sql/execinfra/processorsbase.go#L745-L747](pkg/sql/execinfra/processorsbase.go#L745-L747)
[pkg/sql/execinfra/base.go#L192-L194](pkg/sql/execinfra/base.go#L192-L194)
[pkg/ccl/changefeedccl/changefeed_processors.go#L760-L762](pkg/ccl/changefeedccl/changefeed_processors.go#L760-L762)
[pkg/ccl/changefeedccl/changefeed_processors.go#L836-L838](pkg/ccl/changefeedccl/changefeed_processors.go#L836-L838)
[pkg/ccl/changefeedccl/event_processing.go#L397-L399](pkg/ccl/changefeedccl/event_processing.go#L397-L399)
[pkg/ccl/changefeedccl/event_processing.go#L417-L419](pkg/ccl/changefeedccl/event_processing.go#L417-L419)
[pkg/util/log/logcrash/crash_reporting.go#L431-L433](pkg/util/log/logcrash/crash_reporting.go#L431-L433)

```
src/runtime/asm_amd64.s in runtime.goexit at line 1700
pkg/sql/flowinfra/flow.go in pkg/sql/flowinfra.(*FlowBase).StartInternal.func1 at line 508
pkg/sql/execinfra/processorsbase.go in pkg/sql/execinfra.(*ProcessorBaseNoHelper).Run at line 746
pkg/sql/execinfra/base.go in pkg/sql/execinfra.Run at line 193
pkg/ccl/changefeedccl/changefeed_processors.go in pkg/ccl/changefeedccl.(*changeAggregator).Next at line 761
pkg/ccl/changefeedccl/changefeed_processors.go in pkg/ccl/changefeedccl.(*changeAggregator).tick at line 837
pkg/ccl/changefeedccl/event_processing.go in pkg/ccl/changefeedccl.(*kvEventToRowConsumer).ConsumeEvent at line 398
pkg/ccl/changefeedccl/event_processing.go in pkg/ccl/changefeedccl.(*kvEventToRowConsumer).encodeAndEmit at line 418
pkg/util/log/logcrash/crash_reporting.go in pkg/util/log/logcrash.ReportOrPanic at line 432
```

### Tags

| Tag | Value |
| --- | --- |
| Command | server |
| Environment | v25.2.8 |
| Go Version | go1.23.12 X:nocoverageredesign |
| Platform | linux amd64 |
| Distribution | CCL |
| Cockroach Release | v25.2.8 |
| Cockroach SHA | 74dbb7ba6b71f6d336334f8fa6f5d002506a49d4 |
| # of CPUs | 4 |
| # of Goroutines | 5457 |

Jira issue: CRDB-58681