After failover Pacemaker moves resource back when node comes back

I'm using Pacemaker & Corosync for my cluster. When a node dies pacemaker moving my resources to another online node. Everything ok here. But when the dead node comes back, Pacemaker moving the resource back. I don't have any "location" line in my config and also I tried with "unmove" command but nothing changed. I failed at somewhere and need to find the reason. **crm configure sh** node 1: DEV1 node 2: DEV2 primitive poolip IPaddr2 \ params ip=10.1.60.33 nic=enp2s0f0 cidr_netmask=24 \ meta migration-threshold=2 target-role=Started \ op monitor interval=20 timeout=20 on-fail=restart primitive gui systemd:gui \ op monitor interval=20s \ meta target-role=Started primitive gui-ip IPaddr2 \ params ip=10.1.60.35 nic=enp2s0f0 cidr_netmask=24 \ meta migration-threshold=2 target-role=Started \ op monitor interval=20 timeout=20 on-fail=restart colocation cluster-gui inf: gui gui-ip order gui-after-ip Mandatory: gui-ip gui property cib-bootstrap-options: \ have-watchdog=false \ dc-version=2.0.0-1-8cf3fe749e \ cluster-infrastructure=corosync \ cluster-name=mycluster \ stonith-enabled=false \ no-quorum-policy=ignore \ last-lrm-refresh=1545920437 rsc_defaults rsc-options: \ migration-threshold=10 \ resource-stickiness=100 **pcs resource defaults** migration-threshold=10 resource-stickiness=100 **pcs resource show gui** Resource: gui (class=systemd type=gui) Meta Attrs: target-role=Started Operations: monitor interval=20s (gui-monitor-20s)