ID 488598 - An error occurs and stops tracking when a scaled keyframe patch becomes tracked.

Problem summary
An error occurs and stops tracking when a scaled keyframe patch becomes tracked.

Customer reported version
nuke.n/a

Customer reported platform

Steps to reproduce
1) In Nuke, create a Tracker node.
2) Add a Track and set the initial size of the keyframe patch.
3) Begin placing manual keyframes, adjusting the size of the keyframe patch to be larger/smaller than the original.

4) In the Viewer with the active Track, select key_track_current to track the frames.

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Expected behavior
The Tracker should continue tracking with various frame sizes without error.

Actual behavior
The Tracker fails to further track keyframes when a different sized frame is included.

Workaround
There is no available workaround at this time.

Reproduced by Support in:
Nuke 13.0v4 - Windows 10, macOS 10.14
Nuke 13.0v1 - Windows 10
Nuke 12.0v1 - Windows 10
Nuke 11.0v1 - Windows 10
Nuke 10.0v1 - Windows 10
Nuke 9.0v1 - Windows 10
Nuke 8.0v1 - Windows 10, macOS 10.14

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