Greetings, having the same issue as some others here, where valid Workflow IDs are visible in the UI but can't be found by my Worker.
Workflow name is: PipelineV2Runner-production
A Workflow ID this happened to is: e215050f-edb0-4132-9484-9da1e84019ea
I suspected some kind of race condition and tried a workaround where failed .get operations would be sent to a Queue and retried. This managed to recover some Workflows for a few minutes but has then been completely failing too.