1911292 - sapcontrol: Your system contains kernel instances of questionable state

upgrade-phase PREP_PRE_CHECK/CHECKSYSSTATUS:

1EETQ399 SYSTEM MANAGER: initialize instance list has failed.
1EETQ399 sapcontrol: Your system contains kernel instances of
questionable state. Please use sapcontrol command GetSystemInstanceList
to identify which instances come along without features. Run sapcontrol
without options for documentation.
1EETQ399 Last error code set is 'sapcontrol error'
1EETQ204 Upgrade phase "CHECKSYSSTATUS" aborted with severe errors

The ERS instances are not getting displayed completely as instances (with no name/description), for example:

sapcontrol.exe -prot PIPE -host hostname -nr 10 -function GetSystemInstanceList

GetSystemInstanceList
OK
hostname, instanceNr, httpPort, httpsPort, startPriority, features,
dispstatus
MLVSAPBWPSC, 6, 50613, 0, 1, MESSAGESERVER ENQUE, GREEN
MLV10DBS01, 7, 50713, 0, 3, , GREEN                        <------------------
MLV10DBS02, 7, 50713, 0, 3, , GREEN                        <------------------
MLV10DBS03, 7, 50713, 0, 3, , GREEN                        <------------------
MLV10DBS01, 10, 51013, 0, 3, ABAP GATEWAY ICMAN IGS, GREEN
MLV10DBS02, 10, 51013, 0, 3, ABAP GATEWAY ICMAN IGS, GREEN
MLV10DBS03, 10, 51013, 0, 3, ABAP GATEWAY ICMAN IGS, GREEN

Kernel 700 and 701 with ERS instances.

questionable state, sapcontrol, CHECKSYSSTATUS, kernel 720,701,700, ERS instance，HA , KBA , BC-UPG-TLS-TLA , Upgrade tools for ABAP , BC-CST-STS , Startup Service , Problem