ID 376078 - [CameraTracker] [PUBLIC] The Update Track/Update Solve knobs give an error of "'Node' object is not iterable" when using the CameraTracker node in NukeX.

Problem summary:
The Update Track/Update Solve knobs give an error of "'Node' object is not iterable" when using the CameraTracker node in NukeX.

This occurs after creating a Track and selecting Update Track, or after creating a Solve of the tracks, and selecting Update Solve.

Customer reported version:
nuke.11.2v4

Customer reported platform:
windows10

Steps to reproduce:
1) From NukeX, add a Read node with camera footage.
2) Create a CameraTracker node attached to the Read node.
3) Open the Properties bin of the CameraTracker node and select the Track knob to begin tracking.
4) Select Solve to create the solve for the tracks.
5) Click the 'Update Track' or 'Update Solve' knob and observe the prompt.

Reproduced by Support in:
NukeX 11.2v5 - Windows 10, macOS 10.13
NukeX 11.2v4 - Windows 10, macOS 10.13 - regression

Unable to reproduce bug in:
NukeX 11.2v3 - Windows 10, macOS 10.13

Earliest version tested:
NukeX 11.2v3 - This issue no longer appears in this version and has regressed

Expected behavior:
The Update Track and Update Solve knob should propagate the correct menu prompt without error.

Actual behavior:
The Update Track and Update Solve knobs give an error message of: 'Node' object is not iterable, and fails to update the solve/track.