I just created a new wp site on a second domain on my VPS with ee. Both existing sites are using redis cache and https.
Somehow the server messes up caching via Redis when Redis object Cache is enabled on both wp installs and mixes up both vhosts instead of keeping each of them on seperate cache stores - although different cache prefixes are defined.
I checked wp-config.php and the cache key salt is set to different values on each of the domains.
How can I fix this mess?