'The given value "127.0.0.1,127.0.0.2" in the "security.access_control" config option is not a valid IP address' with environment variable value

But in fact, you can specify ips as a string (through envs) and it works correctly (if ips = "%env(APP_IP_ADDRESSES)%"). That is, the problem occurs only when validating the bundle configuration.

_Originally posted by @zidaneus in https://github.com/symfony/symfony/issues/40864#issuecomment-822437403_