ID 396720 - Corrupted SplineWarp key crashes/freezes Nuke

Follow

Problem summary
Our user has received an issue, where their SplineWarp key has become corrupted.

WINDOWS: 
With the script opened, viewing the SplineWarp node and switching to "frame 1096" causes Nuke to freeze and display image information into the Viewer:


Clicking somewhere in Nuke will cause it to freeze, although leaving it for a long while will bring it back.

LINUX/MAC
With the script opened, viewing the SplineWarp node and switching to "frame 1096" crashes Nuke.
​​​

Customer reported version
nuke.11.3v4

Customer reported platform
windows10

Steps to reproduce

LINUX/MAC Reproduction:

1) Open the attached script,

2) Navigate to Frame 1096 and view the 'Ear' node.

Result: Nuke crashes to desktop


WINDOWS Reproduction:

1) Open the attached script

2) Navigate to Frame 1096 and view the 'Ear' node.

Result 1: Nuke will freeze and start repeating numbers within the Terminal Window.
               After a while, Nuke will become responsive again.


3) Once Nuke is responsive, switch to another frame and wait.

4) Once responsive, switch the Viewer to the Constant node.

5) Double click the 'Ear' node to display it in the Properties bar, and scrub over the timeline.

Result 2: The SplineWarp will transition as expected, but is broken on frame 1096 
               The Viewer does not freeze as it isn't viewing the  SplineWarp




Expected behaviour
The SplineWarp frame should not be corrupted.

Actual behaviour
The SplineWarp has a corrupted frame, causes render crashes.

Workaround
Deleting the animation on frame 1096 from the SplineWarp resolves the issue.

Reproduced by support

This bug has been reproduced in:
Nuke11.3v1- Windows 7 - Mac10.14 - CentOS7
Nuke11.3v1- Windows 7 - Mac10.14 - CentOS7
Nuke11.2v1 - Windows 7
Nuke11.1v1 - Windows 7
Nuke11.0v1 - Windows 7
Nuke10.5v1 - Windows 7
Nuke10.0v1 - Windows 7
Nuke9.0v1 - Windows 7
Nuke8.0v1 - Windows 7 - Mac10.14 - CentOS7

Earliest version tested
- This issue appears to be in all versions of the product

    We're sorry to hear that

    Please tell us why