I have set up a number of image targets, only one of them is working. I tried disabling the one that is working and only having one but that didn’t work. I tried re-creating them, that didn’t work. I have re-imported the database since I created them, but checked them after. The highlighted one is the working one.
I think Vuforia is AR right? You might find folks more familiar with that API over in the VR/AR/XR group on this board.
Vuforia use to have a star rating system. So double check that your targets are “good enough” for VR. You can even see how well it recognizes a target somewhere when you upload your image somewhere. We stopped using Vuforia because they switched to yearly licenses and it just wasn’t worth it, so I only remember details and not where you can find it.
Their star rating system must be a little vague, there are 3 x 5 star rated images and only 1 shows. However after re-editing some of the others, I managed to get multiple available. I wasn’t sure if something had changed in Vuforia. But seems you can still have multiple image targets, just sometimes the quality is a factor but the star system isn’t 100% reliable. I might look into others after I finish this project and re-work it.