Do we need multiple licenses for multiple render nodes? Will one license be fine for 40 render nodes.
Yes, a single license may be used in all render nodes without limitations.
Also can the license be transferred between workstations?
Yes, we don't use annoying protection systems. You can install a license on any workstation, but of course, using only one of them at the same time.
This is our license agreement:Single License
One only copy of the plugins may either be used by a single person who uses the software personally on one or more computers, or installed on a single workstation used non-simultaneously by multiple people, but not both. You may access the plugins through a network, provided that you have obtained individual licenses for the software covering all workstations that will access the software through the network. For instance, if 5 different workstations will access the plugins on the network, each workstation must have its own license, regardless of whether they use the plugins at different times or concurrently.
This restriction is not applied to network render jobs. You can install and use the plugins in any number of workstations simultaneously for this only purpose.