Using one ssl for multiple url

Buddy, It works for me on v12.1.3.4.

# curl -k -u admin:admin  -X POST -H 'Content-Type: application/json'  -d '{ "command": "save", "name": "UCS01" }' https://localhost/mgmt/tm/task/sys/ucs
{
    "_taskId":1563478591515657,
    "_taskState":"STARTED",
    "_taskTimeInStateMs":0,
    "_taskResultLink":"https://localhost/mgmt/tm/task/sys/ucs/1563478591515657/result?ver=12.1.3.4",
    "selfLink":"https://localhost/mgmt/tm/task/sys/ucs/1563478591515657?ver=12.1.3.4"
}
 
# curl -k -u admin:admin -H 'Content-Type: application/json' -X PUT -d '{"_taskState":"VALIDATING"}' https://localhost/mgmt/tm/task/sys/ucs/1563478591515657?ver=12.1.3.4
{
    "code":202,
    "message":"Task will execute asynchronously.",
    "errorStack":[]
}
 
# curl -k -u admin:admin  https://localhost/mgmt/tm/task/sys/ucs/1563478591515657?ver=12.1.3.4
{
    "selfLink":"https://localhost/mgmt/tm/task/sys/ucs/1563478591515657?ver=12.1.3.4",
    "_taskId":1563478591515657,
    "_taskState":"COMPLETED",
    "_taskTimeInStateMs":10000,
    "_taskResultLink":"https://localhost/mgmt/tm/task/sys/ucs/1563478591515657/result?ver=12.1.3.4"
}
 
 
# ls -la /var/local/ucs
total 3976
drwxr-xr-x. 3 root root    4096 2019-07-18 12:37 .
drwxr-xr-x. 9 root root    4096 2019-07-18 12:20 ..
-r--r--r--. 1 root root     114 2018-04-10 13:52 cs_backup_rotate.conf
drwxr-xr-x. 2 root root    4096 2019-07-18 12:22 tmp
-rw-r--r--. 1 root root 4049809 2019-07-18 12:37 UCS01.ucs

So, if you can save UCS from another way, we can't confirm issues during save the file.

It sounds strange to me 😞