When the backup fails due to Virtual Disk Development Kit (VDDK) licensing error, you experience these symptoms:
5536 1728 YYYY-MM-DD TIME ### VixDiskLibVim: Error 3014 (listener error VmodlVimFaultInvalidLogin).5536 1728 YYYY-MM-DD TIME ### VixDiskLibVim: Login failure. Callback error 3014 at 2482.5536 1728 YYYY-MM-DD TIME ### VixDiskLibVim: Failed to load license manager.5536 1728 YYYY-MM-DD TIME ### VixDiskLib: Error occurred when obtaining NFC ticket for: [DATASTORE_NAME] VM_FOLDER/VIRTUAL_DISK_NAME.vmdk. Error 3014 at 3707.