Some users on Naviate for Revit, get the following message when opening a project:
This message informs that the file you try to open has a different schema (a set of parameters used in Naviate Filter) compared to the previous opened project.
This is typically the case when opening a project (House A) that was last saved some months ago (when using an older version of Naviate that did not have the feature that saves the 5 last Filter Setting automatically).
Revit always remembers the settings from the previous project, so after opening this project (House A), by opening a newer Project the message can appear again.
The Solution to solve the Conflict is to Detach & Create a New or Override Central File of the oldest project.
An example explaining the difference between Naviate 2019.1.1 & 2019.1.11: