I have created a list on SharePoint that allows for data to be captured so a document can be created for approval.
The list needs to be able to create 2 kind of documents, with the first type I had no problems thanks to the instructions you can find here: https://blogs.technet.microsoft.com/brenclarke/2009/04/15/automatically-create-word-documents-which-include-list-fields/
Thanks to the link above I was able to create a document that included dropdown fields from the SharePoint list.
But with my second document, as soon as I enter a dropdown/boolean field and save I'm no longer able to open the template or a generated document, instead I get the error you can see below:
I have no idea why this error occurs because I was already able to add another dropdown field to this document without problems, it is in the header of the file but it still works. When I try to display that same property again on a different location in the file I get the same error again.
I tried replicating the error on a new, compacter, list (example used in the url) but the error does not occur here. I can successfully show dropdown and boolean fields there.
If you need anymore additional information or you have questions, please don't hesitate to ask.