1.3.6.1

Fixes

Catalogue : Fixed bugs which caused additional images to appear when changing light groups or crop in an Arnold render (#4267, #4633).
Instancer :
- Fixed failure to update encapsulated instancers when prototype properties changed during interactive renders.
- Prevented unnecessary updates for encapsulated instancers when prototype globals changed.
Process : Fixed bug which caused a No result found exception to be thrown when a more descriptive exception should have been thrown instead.
Shader : Added support for reading from USD token attributes in <attr:> string parameter substitutions.