I didn't have other option but to re-apply redis properties .As it turns out it is not straightforward to just delete and add key/values . You need do a bit do some commands combos to make this work.
Run your favourite command line (for example git bash)
redis-cli DEL _cfgset
redis-cli KEYS "namespace:*" | xargs redis-cli DEL (for example for ufo:redis-cli KEYS "ufo:*" | xargs redis-cli DEL)