ID 388585 - A fatal crash occurs when rendering or transforming an STMap with UVs outside of the bounding box.

Problem summary:
A fatal crash occurs when rendering or transforming an STMap with UVs outside of the bounding box.

Customer reported version:
nuke.11.2v5

Customer reported platform:
windows7

Steps to reproduce:

1) In Nuke, create a Checkerboard node.

2) Create an STMap with the Checkerboard as the src.

3) Open the Properties bin of the STMap and set the UV channels as RGB.

4) Add a TransformMasked node as the STMap input with settings as follows:

5) Connect the input of the TransformMasked node to the Checkerboard.

6) Place a Write node attached below the STMap. The script should now appear as:

7) Render frames 1-10 and observe performance.

Expected behavior:
The image should render and the software should remain stable.

Actual behavior:
Nuke crashes during the first frame when rendering. This can also occur when modifying the UV channels from None to RGB in the STMap Properties bin or when adjusting Transform properties while the UV channels is set to RGB.

Workaround:
Keeping the UV transforms within the bounding box seems to eliminate the crashing.

Reproduced by Support in:

Nuke 11.3v3 - Windows 10, CentOS 7, macOS 10.13 High

Nuke 11.3v1 - Windows 10

Nuke 11.2v1 - Windows 10

Nuke 11.1v1 - Windows 10

Nuke 11.0v1 - Windows 10

Nuke 10.5v1 - Windows 10

Nuke 10.0v1 - Windows 10

Nuke 9.0v1 - Windows 10

Nuke 8.0v1 - Windows 10, CentOS 7, macOS 10.13 High Sierra​

Earliest version tested:
Nuke 8.0v1 - This issue appears to be in all versions of the product