When using Redis as cache provider in a java project, keys and values are stored as a serialized version of the objects.

In the Redis client this looks like this:
127.0.0.1:6379[2]> select 2
OK
127.0.0.1:6379[2]> scan 0 match * count 1000

1. "0"
2. 1. "\xac\xed\x00\x05t\x00\nmandator_1"
   2. "\xac\xed\x00\x05t\x00\ncfg_notice"
   3. "\xac\xed\x00\x05t\x00\x0ccfg_2:notice"
   4. "configuration~keys"
   5. "\xac\xed\x00\x05t\x00\nmandator_2"
      127.0.0.1:6379[2]>

In the Redis Desktop Manager, this will look like this

Sadly, this is not only a visual flaw but will actively prevent from showing the associated data.