Project not available in interlinearizer

Question

I am a translation consultant doing prep for checking a NT book in a language project. I would like to make use of the interlinear by creating glosses of the translation project based on a model text - the project's back translation project. When I open the interlinearizer tool in the main project, and use the 'create new' drop down menu and choose 'Create glosses for [translation project] based on a model text', the back translation does not show up in the list of available projects.

Additionally, there is already an option listed in the interlinearizer window: "Back translation of [translation project], Model text: [back translation project], Output: EBTDN (eng)" and the interesting thing is that above this is a message highlighted in red/pink that says, "This interlinear setting requires projects that are currently unavailable: [back translation project], EBTDN"

In the back translation project's Project Properties, all the settings look correct. The Type of Project is 'back translation' and it is based on the main translation project. I am added as a Consultant in both projects, and both show up in my S/R window and S/R is up to date. I am using Paratext 9.5.110.4

Answer 1

Regarding not seeing the back translation as an available model:
I see something similar when I try. However, in my case the very first option in the list is "Use back translation project as model text". (It does not directly show the project name of the back translation project).
Do you have that option as well?
Keep in mind, the language codes matter. I assume that the model text must match the language code of the output glosses, otherwise the model text would not be useful. Can you clarify, is EBTDN the new target back translation? I see that it is in English. Is the original back translation also in English?

Answer 2

I have seen a couple of times something like this where Paratext gives the warning that the target back translation is missing when it is indeed present. I have found when this happens that choosing the link to edit the interlinear settings, then re-entering the same information will get past the error message.