<!--- Verify first that your issue is not already reported on GitHub -->
<!--- Also test if the latest release and devel branch are affected too -->
<!--- Complete *all* sections as described, this form is processed automatically -->

##### SUMMARY
<!--- Explain the problem briefly below -->
Customize Windows 10 guest OS with wait_for_customzation parameter set, but after many hours there is no return and the playbook just stuck there.
##### ISSUE TYPE
- Bug Report

##### COMPONENT NAME
<!--- Write the short name of the module, plugin, task or feature below, use your best guess if unsure -->
vmware_guest
##### ANSIBLE VERSION
<!--- Paste verbatim output from "ansible --version" between quotes -->
```paste below
ansible 2.10.0.dev0
  config file = /etc/ansible/ansible.cfg
  configured module search path = [u'/root/.ansible/plugins/modules', u'/usr/share/ansible/plugins/modules']
  ansible python module location = /root/.local/lib/python2.7/site-packages/ansible
  executable location = ./bin/ansible
  python version = 2.7.15+ (default, Jul  9 2019, 16:51:35) [GCC 7.4.0]
```

##### CONFIGURATION
<!--- Paste verbatim output from "ansible-config dump --only-changed" between quotes -->
```paste below

```

##### OS / ENVIRONMENT
<!--- Provide all relevant information below, e.g. target OS versions, network device firmware, etc. -->
vSphere 6.7U3, Windows 10 guest OS 32bit with BIOS firmware

##### STEPS TO REPRODUCE
<!--- Describe exactly how to reproduce the problem, using a minimal test-case -->

<!--- Paste example playbooks or commands between quotes below -->
```yaml

```

<!--- HINT: You can paste gist.github.com links for larger files -->

##### EXPECTED RESULTS
<!--- Describe what you expected to happen when running the steps above -->
If something wrong with the customization in guest OS, no event in VC, then wait_for_customization should return timeout error in a not very long time.

##### ACTUAL RESULTS
<!--- Describe what actually happened. If possible run with extra verbosity (-vvvv) -->
no timeout error return after more than 10 hours, just stuck there.
<!--- Paste verbatim command output between quotes -->
```paste below

```

network_devices = list()
        
        for network in self.params['networks']:
            if 'name' not in network and 'vlan' not in network:
                self.module.fail_json(msg="Please specify at least a network name or"
                                          " a VLAN name under VM network list.")
            if 'name' in network and self.cache.get_network(network['name']) is None:
                self.module.fail_json(msg="Network '%(name)s' does not exist." % network)
            elif 'vlan' in network:
                dvps = self.cache.get_all_objs(self.content, [vim.dvs.DistributedVirtualPortgroup])
                for dvp in dvps:
                    if hasattr(dvp.config.defaultPortConfig, 'vlan') and \
                            isinstance(dvp.config.defaultPortConfig.vlan.vlanId, int) and \
                            str(dvp.config.defaultPortConfig.vlan.vlanId) == str(network['vlan']):
                        network['name'] = dvp.config.name
                        break
                    if 'dvswitch_name' in network and \
                            dvp.config.distributedVirtualSwitch.name == network['dvswitch_name'] and \
                            dvp.config.name == network['vlan']:
                        network['name'] = dvp.config.name
                        break
                    if dvp.config.name == network['vlan']:
                        network['name'] = dvp.config.name
                        break
                else:
                    self.module.fail_json(msg="VLAN '%(vlan)s' does not exist." % network)
            if 'type' in network:
                if network['type'] not in ['dhcp', 'static']:
                    self.module.fail_json(msg="Network type '%(type)s' is not a valid parameter."
                                              " Valid parameters are ['dhcp', 'static']." % network)