ID 374061 - Removing a Bezier from a RotoPaint node within the Dope Sheet causes Nuke to Crash

Problem summary
Nuke crashes when a specific Bezier Keyframe is deleted through the Dope sheet.
This issue appears to only occur in Windows and Mac  ( In our support testing environment )

From reviewing the crash report, this appears to be a Dope Sheet issue.

Customer reported version
nuke.11.2v4

Customer reported platform
windows10

Steps to reproduce

1) Open your Nuke script and navigate to the Rotopaint node ( RotoPaint4 )

2) Within the Rotopaint node, select the bezier and open the Dope Sheet ( Bezier2 )

3) Navigate to the keyframe causing issues ( Frame 1000 ), and delete it.

Result: After a few seconds, Nuke will crash to desktop.

Workaround
Removing the Bezier through the RotoPaint does not Crash Nuke.
Interestingly modifying the keyframe or moving it to another frame still crashes Nuke when deleted.

Reproduced by support

This bug has been reproduced in:
Nuke11.2v4 - Windows 7 - Mac10.13
Nuke11.2v1 - Windows 7
Nuke11.1v4 - Windows 7
Nuke11.1v1 - Windows 7
Nuke11.0v4 - Windows 7
Nuke11.0v1 - Windows 7
Nuke10.5v7 - Windows 7 - Mac10.13
Nuke10.5v1 - Windows 7
Nuke10.0v6 - Windows 7
Nuke10.0v1 - Windows 7
Nuke9.0v9 - Windows 7
Nuke9.0v1 - Windows 7
Nuke8.0v7 - Windows 7
Nuke7.0v10 - Windows 7 - Mac10.13


Unable to reproduce bug in:
Nuke11.2v4 - CentOS7

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

Expected behaviour
Removing the Bezier keyframe should just delete the keyframe

Actual behaviour
Removing the Bezier keyframe crashes Nuke after a few seconds.