When trying to import exported data into a new app, the user objectId’s appear to change, which is ok for relationship data as far as I can tell, but the ownerId’s are not updated across all of the tables, resulting in not being able to search by ownerId. I have tried on both the hosted version of Backendless, as well as the standalone installation, which is where I do most of the development.
Chad, this sounds like a bug. I will open an internal ticket to reproduce and, if confirmed, fix the problem.