Describe the bug

(I know 1 as min_idle_time is not the finest idea but it was in order to get an clean example)
Message is claimed but it is not returned as the doc specifies.

To reproduce
Sadly I do not know 🤷. We are running redis on aws elasticache, working fine 99.9% of the time but sometimes this happens and it's impossible to access the message.
Expected behavior
The message to be returned.
Additional information
I spent hours trying to understand this and I'm nearly desperate, i have not idea about what to do and i do not want to drop redis 😢