The following actions are missing in egress flows:

move:NXM_NX_NSI[]->NXM_NX_NSI[],
move:NXM_NX_NSP[]->NXM_NX_NSP[],
move:NXM_NX_NSH_C1[]->NXM_NX_TUN_IPV4_DST[],
move:NXM_NX_NSH_C2[]->NXM_NX_TUN_ID[0..31]

Example:
Should be
cookie=0xba5eba11ba5eba11, duration=148.460 table=15, n_packets=150 n_bytes=1195, priority=650,nsp=95,nsi=253 actions=move:NXM_NX_NSI[]>NXM_NX_NSI[],move:NXM_NX_NSP[]>NXM_NX_NSP[],move:NXM_NX_NSH_C1[]>NXM_NX_TUN_IPV4_DST[],move:NXM_NX_NSH_C2[]>NXM_NX_TUN_ID[0..31],IN_PORT
But is
cookie=0xba5eba11ba5eba11, duration=9.303s, table=15, n_packets=48, n_bytes=3552, priority=751,nsp=95,nsi=253,in_port=1 actions=IN_PORT

https://github.com/opendaylight/sfc/blob/stable/beryllium/sfcofl2/src/main/java/org/opendaylight/sfc/l2renderer/openflow/SfcL2FlowProgrammerOFimpl.java

I looked into configureVxlanGpeLastHopTransportEgressFlow method here on line 1085 (priority of flows are FLOW_PRIORITY_TRANSPORT_EGRESS + 1)

And I noticed, that all the missing actions are actually being configured.
Therefore it's possible that the problem may also be caused by Openflowplugin.

The misconfigured flow can be seen here:
https://jenkins.opendaylight.org/releng/view/groupbasedpolicy/job/groupbasedpolicy-csit-1node-6node-only-beryllium/539/robot/report/log.html#s1-s2-s11-t4-k2-k2

please notice the flow
priority 751,table=15,nsi=253,...

Nodes config and operational DS can be also seen on robot output:
nodes config:
https://jenkins.opendaylight.org/releng/view/groupbasedpolicy/job/groupbasedpolicy-csit-1node-6node-only-beryllium/539/robot/report/log.html#s1-s2-s11-t4-k2-k2
nodes operational:
https://jenkins.opendaylight.org/releng/view/groupbasedpolicy/job/groupbasedpolicy-csit-1node-6node-only-beryllium/539/robot/report/log.html#s1-s2-s11-t10-k2