Similar to when we train the model for Object Detection, having a capability where we can highlight areas of a form and tag the area to a field name, this would resolve the cases where the FP is not detecting an area as such.
Good news! You can now define areas not automatically detected. https://powerapps.microsoft.com/en-us/blog/ai-builder-form-processing-now-lets-you-recognize-undetec...
I found AI Builder - Form processing very fustrating, if we upload 40 images, it only allows for selecting what it founds in the last image, and in addition it doesn't allow modification, in supervised learning, tagging is very important; and if you do unsupervised learning, your algorithm has to improve very much.