Some people have noticed the problems with Kant's way of showing how and why principles of science work. This started a long time ago. The issue is this do we know principles like space, time, causality by induction or a priori reasons. Induction does not work as Hume showed, so Kant tried the a priori approach. The ways he goes about this are considered to be flimsy. Some people are even harsh about this. Danny Frederick wrote that the way Kant does this is  invalid and dogmatic.  So I wonder why the Kelley Ross's  approach [based on Jacob Fries and Leonard Nelson] is not more looked into. This is thoroughly Kantian, but   corrects this one area by the idea of immediate non intuitive knowledge. I would think that people that are Kantians would look into this approach.`

i realize to some extent that the whole Friesian approach has taken a long time to get into shape. You can see this yourself if you look at Fries. And as for Leonard Nelson, well things are a lot better but still there was a lot of difficulty when Relativity came on the scene. Altogether would say that the Kelley Ross approach puts it altogether in the best way  the link is to the general information site of dr ross but you might take a look at his phd thesis at that site which has a lot more detail. 

[I was motivated to mention this because Fries and Nelson were both mentioned by an Analytic philosopher] and that fellow also noticed the Nelson Affair. [Nelson was a pariah for the philosophers at  Gottingen. but very much in favor by David Hilbert. Personally I would go with David Hilbert any day of the week.