Fix the way LUTs are specified
When I apply a LUT in Lumetri, it doesn't actually remember which specific LUT I wanted to use, it remembers which item number in the list I selected.
That makes it impossible to share projects with any editor who has added LUTs because most of our LUTs are now in a different order, so it's using the wrong ones and every shot now looks terrible.
Placing new LUTs in the Common folder fixes most of the issue moving forward. However, the list in the Common folder still changes the index number of the Adobe installed LUTs, which will still be an issue when using Adobe installed LUTs. Also older projects migrated from previous versions may have used an indexed LUT which is no longer available in the current Premiere which requires a re-color of those projects – nightmare for the archive.
If the current software is simply changed from an index number for those Adobe installed LUTs to a name it'll solve the issues going backwards and forward.
The problems you are experiencing are caused by tampering with the LUTs within the application package - please do not do this. The safest way to proceed at this point is to completely reinstall PPro and AME so the LUT directories are restored to their default state as intended by our engineers. You will then need to remove all LUTs from your project and reapply them. I know this is inconvenient, but it really is the safest way to make certain your project will render as intended.
If you are using several custom LUTs and want them to show up in the Lumetri dropdown menus we have a solution which is newly available in the most recent update (2018 - version 12.1). You can install your LUTs into a specific folder in your user library and Lumetri will scan them in.
Here are the instructions to install and use custom LUTs:
Like to read: https://helpx.adobe.com/premiere-pro/using/whats-new.html
Like to watch: https://www.youtube.com/watch?v=dnJQj09GDfM
LUTs that are stored in these folders will get embedded into the project file when you use them. So you can share the project with a colleague and all the LUTs will be present and be functioning for them even if they don't have the specific LUTs installed. It will not install these LUTs onto the other person's system for them to use on additional clips, however. It is therefore recommended that you send them the LUT with instructions on how to install it onto their system. Hope this helps.