ID 342210 - Avid Mov32 codec profile option disappears after hitting "ok" in codec options.

Problem summary
Avid Mov32 codec profile option disappears after hitting "ok" in codec options.

Customer reported version
nuke.11.1v1

Customer reported platform
windows7

Steps to reproduce
1) Open Nuke.
2) Create a write node.
3) Change the file type to "Mov" and the codec to "Avid DNxHD Codec."
4) Change the encoder to "mov32."
5) Select the chevron next to the advanced settings to reveal the codec options. At the bottom should be a an option labeled "Codec Profile."
6) Select "codec options." This should reveal an external window.
7) Select "Ok" in the external window.
Result: The Codec Profile option disappears. 

Workaround
Hiding and revealing the advanced settings will re-reveal the codec profile option.

Reproduced by support
This bug has been reproduced in:
11.1v2 - Windows 10, OSX 10.13
11.1v1 - Windows 10
11.0v3 - Windows 10
11.0v1 - Windows 10
10.5v7 - Windows 10
10.5v1 - Windows 10, OSX 10.13

Earliest version tested
10.5v1 - Windows 10, OSX 10.13. A linux device with the avid encoders was unavailable during testing. This feature (Codec Profile underneath advanced settings) did not exist before this version.