Where does for UI app store forms created?

I am using version 6.2.1.
I created forms using the designer in the app but when I try to query definitions via rest, nothing is returned, so I checked the DB tables and saw that they’re empty. instead the form ids are stored in the
ACT_DE_MODEL table along with process definitions.
I will say I am about to install the latest version (6.4.1 I think at this point) of the flowable stack to test and compare, so if this is a bug that is fixed in 6.4.1 I apologise before hand.

Take a look at this post: Flowable’s REST API - Part 1