ID 339197 - Disabling or deleting a dissolve on a some track items causes Nuke Studio to crash

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Problem summary
Disabling or deleting a dissolve fade in transition on a some track items causes Nuke Studio to crash

Customer reported version
nuke.10.5v7

Customer reported platform
n_a_linux

Steps to reproduce

1) Open the attached Nuke Studio project

2) Select the Fade in dissolve from one of the track items in Track "Video 4" 

3) Press d to disable it, Nuke will crash

Recreating a similar project with 3 blend tracks and dissolves on the first track clips can cause the same crash, see the attached video.

Workaround
Unknown.

Reproduced by support
This bug has been reproduced in:
Nuke Studio 11.1v2 - Windows 10 - CentOS 6.8- MacOSX 10.13
Nuke Studio 11.1v1 - Windows 10
Nuke Studio 11.0v4 - Windows 10
Nuke Studio 11.0v1 - Windows 10
Nuke Studio 10.5v7 - Windows 10
Nuke Studio 10.5v1 - Windows 10
Nuke Studio 10.0v6 - Windows 10
Nuke Studio 10.0v1 - Windows 10 - CentOS 6.8- MacOSX 10.13 - regression

Unable to reproduce bug in:
Nuke Studio 9.0v9 - Windows 10 - CentOS 6.8 - MacOSX 10.13

Earliest version tested
Nuke Studio 9.0v9 - This issue no longer appears in this version and has regressed
Expected behaviour
For the dissolve on the track item to be disabled

Actual behaviour
Nuke crashed
 

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