[ovirt-users] Can not log to engine manager after creating a clone

Hello, Fresh 4.3 Cluster : I imported a 4.2 export domain, copied the vm on the newly provisioned gluster Volume with VDO I then tried to create a clone of a 50GB thin provisionning vm anddisconnected This morning I can not log in Engine Manager even after rebooting hosted-engine : I get this message in UI and logs when I click "Administration Portal" 2019-02-08 09:40:51,706+01 ERROR [org.ovirt.engine.core.aaa.servlet.SsoPostLoginServlet] (default task-1) [] org.apache.commons.lang.SerializationException: org.codehaus.jackson.map.JsonMappingException: Can not deserialize instance of java.util.LinkedHashMap out of START_ARRAY token at [Source: java.io.StringReader@f832283; line: 724, column: 25] (through reference chain: org.ovirt.engine.core.common.action.CloneVmParameters["watchdog"]->org.ovirt.engine.core.common.businessentities.VmWatchdog["specParams"])