I'm currently experiencing very strange behaviour in the Shop.

1. Manage Shops > All Shops > Create a new shop and add all necessary properties
2. Restart UI for the new Shop App to be displayed
3. Go to Website, create a ShopHome page, open it and set the current shop to the one just created
4. After opening home page 1 product category should have been generated
5. No go to the Products app of your shop and add a product
6. # The categories don't appear
7. Click cancel -> You land on another view, where all products of all shops are displayed (bug, because you should land on the products app of your shop only)
8. In the Shops -> All Products view add a new product under your shop
9. # now the categories are displayed
10. Now go back to the Products app of your shop and double click the new product
11. # all the product properties in the dialog are empty
12. Now edit the same product through the Shops -> All products view
13. # The product properties can be seen in the dialog

To me it looks like the generated shop apps don't behave correctly.