PbmQueryAssociatedProfiles() fails if pbm.version.version11 is used

The following code:

    self._pbm_connect()
    profileManager = self.pbmSI.RetrieveContent().profileManager
    for vm in VMs:
        VMs_by_key[vm._moId]=vm
        pbmRef = pbm.ServerObjectRef(key=vm._moId,
                                     objectType=pbm.ServerObjectRef.ObjectType('virtualMachine'))
        pbmRefs.append(pbmRef)

    results = profileManager.PbmQueryAssociatedProfiles(entities=pbmRefs)
    print(results)

def _pbm_connect(self):
    if self.pbmSI is not None:
        return

    self._pyvmomi_connect()
    VmomiSupport.GetRequestContext()["vcSessionCookie"] = self.si._stub.cookie.split('"')[1]
    hostname = self.si._stub.host.split(":")[0]
    pbmStub = SoapStubAdapter(
        host=hostname,
        version="pbm.version.version11",
        path="/pbm/sdk",
        poolSize=0,
        sslContext=ssl._create_unverified_context())
    pbmServiceInstance = pbm.ServiceInstance("ServiceInstance", pbmStub)

    self.pbmSI = pbmServiceInstance

It fails with:

...
results = profileManager.PbmQueryAssociatedProfiles(entities=pbmRefs)
File "/var/tmp/hdb-tool_venv/lib64/python3.7/site-packages/pyVmomi/VmomiSupport.py", line 706, in
self.f(*(self.args + (obj,) + args), **kwargs)
File "/var/tmp/hdb-tool_venv/lib64/python3.7/site-packages/pyVmomi/VmomiSupport.py", line 512, in _InvokeMethod
return self._stub.InvokeMethod(self, info, args)
File "/var/tmp/hdb-tool_venv/lib64/python3.7/site-packages/pyVmomi/SoapAdapter.py", line 1388, in InvokeMethod
raise exc
File "/var/tmp/hdb-tool_venv/lib64/python3.7/site-packages/pyVmomi/SoapAdapter.py", line 1378, in InvokeMethod
obj = deserializer.Deserialize(fd, info.result)
File "/var/tmp/hdb-tool_venv/lib64/python3.7/site-packages/pyVmomi/SoapAdapter.py", line 845, in Deserialize
ParseData(self.parser, response)
File "/var/tmp/hdb-tool_venv/lib64/python3.7/site-packages/pyVmomi/SoapAdapter.py", line 525, in ParseData
reraise(ParserError, pe, tb)
File "/var/tmp/hdb-tool_venv/lib64/python3.7/site-packages/six.py", line 702, in reraise
raise value.with_traceback(tb)
File "/var/tmp/hdb-tool_venv/lib64/python3.7/site-packages/pyVmomi/SoapAdapter.py", line 514, in ParseData
parser.ParseFile(data)
File "/builddir/build/BUILD/Python-3.7.5/Modules/pyexpat.c", line 417, in StartElement
File "/var/tmp/hdb-tool_venv/lib64/python3.7/site-packages/pyVmomi/SoapAdapter.py", line 692, in StartElementHandler
dynType = self.LookupWsdlType(ns, name, allowManagedObjectReference=True)
File "/var/tmp/hdb-tool_venv/lib64/python3.7/site-packages/pyVmomi/SoapAdapter.py", line 657, in LookupWsdlType
return GuessWsdlType(name)
File "/var/tmp/hdb-tool_venv/lib64/python3.7/site-packages/pyVmomi/VmomiSupport.py", line 1192, in GuessWsdlType
raise UnknownWsdlTypeError(name)
pyVmomi.SoapAdapter.ParserError: 'xml document: <http.client.HTTPResponse object at 0x7ff02fc73710> parse error at: line:1, col:420'

However, if in _pbm_connect() I change the version string to "pbm.version.version11" then it works and returns a result:

(pbm.profile.QueryProfileResult) {
dynamicType = ,
dynamicProperty = (vmodl.DynamicProperty) [],
object = (pbm.ServerObjectRef) {
dynamicType = ,
dynamicProperty = (vmodl.DynamicProperty) [],
objectType = 'virtualMachine',
key = 'vm-1009',
serverUuid = 'ae90771a-6504-4090-b241-0c1d7543cad3'
},
profileId = (pbm.profile.ProfileId) [
(pbm.profile.ProfileId) {
dynamicType = ,
dynamicProperty = (vmodl.DynamicProperty) [],
uniqueId = '7c530cad-bf0c-4187-b77c-0f81b0b8f22c'
}
],
fault =
}

But then version1 breaks some other calls which require version11.
Do I need to obtain and use different pbm handle with different version used for different call?
Or should the PbmQueryAssociatedProfiles() call work with version11?

Start in _pbm_connect() and trace SoapStubAdapter version handling into PbmQueryAssociatedProfiles, using the supplied ParserError traceback and the contrasting pbm.version.version1 and pbm.version.version11 results. Determine whether the call should support version11 or requires separate PBM handles, then add or update coverage demonstrating the affected call versions and preserving the other calls.