Vuforia can't find matching trackable in dataset

I'm trying to use object recognition in my unity 2019.2 + vuforia 8.5 project but I'm getting this error every time i hit the play button:

"Could not associate DataSetTrackableBehaviour 'object' - no matching Trackable found in DataSet!"

It works just fine when I try a predefined target but it doesn't seem to be working with any user defined targets and I don't have any ideas why. Does anyone have a solution for this?

P.S: I'm using VuforiaObjectScanner 9.6.3 to perform my 3D scans and I already imported my vuforia database (with the 3D scan) into the project.