ID 514396 - Adding certain nodes to the STMap input breaks the output, making it repeat the bottom left pixel over the whole image

add32p

AppendClip

Assert

C_GenerateMap2_1

Colorspace

Copy

CopyBBox

CopyRectangle

Dissolve

Encryptomatte

Expression

FrameRangeGamma

Keymix

Multiply

OCIOCDLTransform

OCIOColorSpace

remove32p

Retime

TimeDissolve

TimeWarp

VectorToMotion

Customer reported version:
Nuke 13.2v2

Customer reported platform:
CentOS 7

Steps to reproduce:
1) Open Nuke and open attached script
2) Connect one of the Breaking Nodes above the STMap node, it will now render the bottom left color of the image:

*Sometimes you may need to switch the Switch node input to force an upstream refresh

Expected behavior:
The STMap node should be rendered correctly, regardless of the nodes upstream.

Actual behavior:
Having certain nodes upstream causes the STMap to render the bottom left pixel everywhere.

Workaround:
Between the STMap and the upstream node, create a Grade, Merge or Transform node. Additionally, changing the STMap node's filter knob to impulse seems to resolve the issue, but this method does disable filtering as stated in the tooltip:

Reproduced by Support in:
Nuke 13.2v4 - Windows 10 - macOS 12.4 - CentOS 7
Nuke 13.1v1 - Windows 10 - macOS 12.4 - CentOS 7 - Regression

Unable to reproduce bug in:
Nuke 13.0v9 - Windows 10 - macOS 12.4 - CentOS 7

Earliest version tested:
Nuke 13.0v9 - This issue doesn't appear in this version and has regressed