Changed from Syslog UDP/514 -> Syslog TCP/1468 in Kiwi Syslog Generator and checked TCP/1468 as input in Kiwi Syslog Server. WORKED!!
changing back to Syslog UDP/514 dont work. Dubblechecked that Kiwi Syslog Server has UDP checked. Checked the documention and UDP is default setup and no config should be needed.