Select Hot ADD CPU and Memory from .net sdk v5.5

I am trying to make a vm hot add enabled for cpu and memory, but the changes do not seem to stick.  I get no errors.  Here is my code

**power off vm in another function

 workerVm = GetVM(orgName, vmName);

 VmType vmType = new VmType();
 vmType = workerVm.GetResource();
 VmCapabilitiesType vmCapabilitiesType = new VmCapabilitiesType();
 vmCapabilitiesType = vmType.VmCapabilities;
 vmType.needsCustomization = true;

 if (vmCapabilitiesType.CpuHotAddEnabled != cpuHot)
 vmCapabilitiesType.CpuHotAddEnabled = cpuHot;
 if (vmCapabilitiesType.MemoryHotAddEnabled != memoryHot)
 vmCapabilitiesType.MemoryHotAddEnabled = memoryHot;

 vmType.VmCapabilities = vmCapabilitiesType;

 task = workerVm.UpdateVM(vmType);
 task.WaitForTask(0);

 task = workerVm.UpdateHotAdd(memoryHot, cpuHot);
 task.WaitForTask(0);

 GuestCustomizationSectionType guestCustomizationSection = workerVm.GetGuestCustomizationSection();
 if (!guestCustomizationSection.Enabled)
 {
 guestCustomizationSection.Enabled = true;

 task = workerVm.UpdateSection(guestCustomizationSection);
 task.WaitForTask(0);
 }
**Turn on vm in another function

I would be very grateful for any assistance!