[BUG] recoverer: could not move task to archive: INTERNAL_ERROR: redis eval error: NOT FOUND — Unexpected Warning with Redis Sentinel

[htnphu]

Describe the bug
Hi everyone,

I'm encountering the following recurring warning when using Asynq v0.25.1 with Redis Sentinel:
recoverer: could not move task to archive: INTERNAL_ERROR: redis eval error: NOT FOUND
recoverer: could not retry lease expired task: INTERNAL_ERROR: redis eval error: NOT FOUND

I understand this message typically indicates a task is missing from Redis when the recoverer tries to archive it, but in my case, I’ve not deleted any task keys manually.

Environment :

• Redis version: v9.7.0
• Redis mode: Sentinel setup (with failover)
• Asynq version: v0.25.1
• No manual deletion of Redis keys has been done.
• Tasks are processed normally, but this warning appears periodically.