Foreman 1.16.0-RC2 works great on all our ESX 6.5 hosts, but all my ESX 5.5 hosts fail to create the host with the following error in the production log. I don't do anything different during the create process.

2017-12-21 15:36:39 a1abee98 [app] [W] Failed to create a compute tsmvc - TSM Datacenter (VMware) instance clara-gebers.qa.catalogic.us: InvalidArgument: A specified parameter was not correct: | | RbVmomi::Fault: InvalidArgument: A specified parameter was not correct: | /opt/theforeman/tfm/root/usr/share/gems/gems/rbvmomi-1.10.0/lib/rbvmomi/vim/Task.rb:14:in `wait_for_completion' | /opt/theforeman/tfm/root/usr/share/gems/gems/fog-vsphere-1.9.2/lib/fog/vsphere/requests/compute/create_vm.rb:48:in `create_vm_on_datastore' | /opt/theforeman/tfm/root/usr/share/gems/gems/fog-vsphere-1.9.2/lib/fog/vsphere/requests/compute/create_vm.rb:40:in `create_vm' | /opt/theforeman/tfm/root/usr/share/gems/gems/fog-vsphere-1.9.2/lib/fog/vsphere/models/compute/server.rb:297:in `save'

The parameters passed to the build command are shown here in the production log, something it doesn't like. The production log zipped is attached to the issue.
2017-12-21 15:36:32 a1abee98 [app] [I] Parameters: {"utf8"=>"✓", "authenticity_token"=>"5EJGBWfJQ1+MsFz3156vNnjpTD58csqX975PcDEI8/Y5HlRB8cL/K0naUjJaJKrMAqpbGMLZcDcEqFwJQHyTaw==", "host"=>{"name"=>"clara-gebers", "hostgroup_id"=>"1", "compute_resource_id"=>"10", "compute_profile_id"=>"1", "environment_id"=>"8", "config_group_ids"=>[""], "puppetclass_ids"=>[""], "managed"=>"true", "progress_report_id"=>"[FILTERED]", "type"=>"Host::Managed", "interfaces_attributes"=>{"0"=>{"_destroy"=>"0", "type"=>"Nic::Managed", "mac"=>"", "identifier"=>"", "name"=>"clara-gebers", "domain_id"=>"1", "subnet_id"=>"1", "ip"=>"172.20.40.110", "ip6"=>"", "managed"=>"0", "primary"=>"1", "provision"=>"1", "virtual"=>"0", "tag"=>"", "attached_to"=>"", "compute_attributes"=>{"type"=>"VirtualE1000", "network"=>"network-11"}}}, "compute_attributes"=>{"cpus"=>"1", "corespersocket"=>"1", "memory_mb"=>"2048", "firmware"=>"bios", "cluster"=>"bexesx2.devad.catalogic.us", "resource_pool"=>"ehansen", "path"=>"/Datacenters/TSM/vm", "guest_id"=>"centos7_64Guest", "hardware_version"=>"vmx-10", "memoryHotAddEnabled"=>"0", "cpuHotAddEnabled"=>"0", "add_cdrom"=>"0", "start"=>"1", "annotation"=>"", "scsi_controllers"=>"{\"scsiControllers\":[{\"type\":\"VirtualLsiLogicController\",\"key\":1000}],\"volumes\":[{\"thin\":true,\"name\":\"Hard disk\",\"mode\":\"persistent\",\"controllerKey\":1000,\"size\":10485760,\"sizeGb\":100,\"datastore\":\"archive_inventory\"}]}"}, "architecture_id"=>"1", "operatingsystem_id"=>"17", "provision_method"=>"bootdisk", "build"=>"1", "medium_id"=>"1", "ptable_id"=>"123", "pxe_loader"=>"None", "disk"=>"", "root_pass"=>"[FILTERED]", "is_owned_by"=>"3-Users", "enabled"=>"1", "model_id"=>"", "comment"=>"", "overwrite"=>"false"}, "capabilities"=>"build image bootdisk", "provider"=>"Vmware", "bare_metal_capabilities"=>"build"}