After first version of connector was deployed, second one can't be deployed with errors below visible in the logs.
Failed to create/update the namespace '<connector name>'. Error = javax.naming.NameNotFoundException: [LDAP: error code 32 - :ETA_E_0007<MNS>, Endpoint type '<connector name>' modification failed: Connector Server Add failed: Failed to create node for objectclass (ldaps://<connector server FQDN>:20403) ]; remaining name 'eTNamespaceName=<connector name>,dc=im,dc=eta'
CDRoleDefServiceImpl.importConfig() - Failed to create namespace '<connector name>' in provisioning server. Error = Failed to create/update the namespace '<connector name>'. Error = javax.naming.NameNotFoundException: [LDAP: error code 32 - :ETA_E_0007<MNS>, Endpoint type '<connector name>' modification failed: Connector Server Add failed: Failed to create node for objectclass (ldaps://<connector server FQDN>:20403) ]; remaining name 'eTNamespaceName=<connector name>,dc=im,dc=eta'
14.4 CP2
Workaround: Changing the application name along with version then deploy it again.
Hotfix HF-DE580786.zip was provided which allows to deploy new version of connector.
Please be aware you might need to redeploy application to have this option.
Hotfix is part of 14.5 release of IM.