ID 311682 - On first attempt, the Denoise Node can sometimes cause an error and crash in Nuke 11.0v2

Problem summary
When starting Nuke with an empty temp directory, the Denoise node can sometimes cause an error and crash. There is an error in the code that tries to create the sub-directories in the temp directory, but it only fails when ran for the first time.

Customer reported version
nuke.11.0v2

Customer reported platform
10.12

Steps to reproduce

1) Start Nuke with an empty temp directory

2) Create a CheckerBoard

3) Create “Denoise” node attached to checkerboard

4) Move the Sample Square around

5) Nuke will crash

Workaround
Unknown.

Reproduced by support
Reproduced by dev team, in-house.

Earliest version tested
Not reproduced by Support. Regression with last working version: 11.0v1

Expected behaviour
The Denoise node should not cause Nuke to error in any way and should behave as expected.

Actual behaviour
When moving around the Sample Square of the Denoise Node, Nuke will crash.