Can't find imported skin packs on Character Creator Beta, therefore can't test them

Partner Rank: 2

Partner Team Reporting: Arrow Art Games

Verification Builds and Platforms: Beta build that has the new character creator UI, Win10

Summary:  As a creator I want to continue to be able to test my skin packs locally after the Character Creator ships, so that I can test my skin packs before I submit them in Auger.

Impact: If this bug goes unresolved, partners will not be able to test their skin packs before submitting them to Auger. Once character creator is live, if this bug is not fixed, partner development for skin packs will be severely hindered.

Repro Steps:

-Import a skins.mcpack file into the game locally on your machine by double clicking the file from your desktop so that it automatically opens the game and import the pack

Observed Results: 

-Observe the message that is the pack is successfully imported.

-Observe that there is no way to actually find the pack in either the store or the character creator menus.

Expected Results: Skin pack shows at the top of the skin picker list. 

Screenshots/Videos attached: No.

Regression Builds: This does not occur in the currently live build of 1.12.1 which does not have the new character creator UI.