ID 279513 - Nuke Studio is ignoring {_nameindex} resulting in Comps not being created.

Problem summary
Nuke Studio is ignoring {_nameindex} resulting in a created Comp being unable to be exported

Customer reported version
nuke.10.5

Customer reported platform
MacOS 

Steps to reproduce

1) Open a new NukeStudio 

2) Import files into your new Scene

3) Drag and drop test sequence into the timeline

4) Right click the new sequence in the timeline and select Effects - > Create Comp

5) Set your project to a test directory

6) Attempt to export your comp using default export settings

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Workaround
Use Nuke 9.0v9 and earlier, otherwise unknown.

Reproduced by support
Was able to reproduce across multiple OS's and versions. 
Nuke10.5v4 - Windows 7 - MacOS 10.12.4
Nuke10.5v1 - Windows 7 - MacOS 10.12.4


Not reproduced
Nuke9.0v9 -Windows 7 - MacOS 10.12.4

Expected behaviour
Nuke would correctly create comps from nuke studio

Actual behaviour
The error would occur with "{_nameindex}" not found regardless of it being visible in the project settings as well as manually set in the Create Comp settings, making it unable to Create a Comp for Nuke.