Storing entites in Redis(Cluster)Store doesn't work under high load

[ByteAlex]

I was using RedisClusterStore on my test-bot with ~100 Servers, which was working fine so far, but when I booted the same architecture on my 350k server token, only about 90k guilds were stored to redis. There were no errors, even on debug and a counter for guild-creates counted the 350k events.
The same error happens with RedisStore aswell.