/opt/vmware/vcloud-director/tmp/ in one of the cells you can see a new file with format name cust####################.cfg every time you try to force re-customization or deploy a new VM with guest customization enabled.VMware Cloud Director 10.6
This issue occurs when the ".cust" and ".cab" file necessary for the guest customization are not generated correctly by VCD.
To fix this issue restart the cell containing the .cfg files. Steps to stop, start, or restart the VMware Cloud Director service before rebooting the nodes