QKVIEW REST Request to vCMP Guest fails

Hi,

Then trying to request qkview via REST API to one of our vCMP Guest I retrieve error message as show below.

https://support.f5.com/csp/article/K04396542

curl -sku admin:admin -H "Content-Type: application/json" -X POST https://x.x.x.x/mgmt/tm/util/qkview -d '{"command":"run"}'

{
 "code": 400,
 "message": "Found invalid JSON body in the request.",
 "errorStack": [],
 "apiError": 1
}

Doing exactly the same on vCMP host works without any problem.

Does anyone facing same error and maybe a solution?

Thanks in advance

Patric