Hello,
I followed your steps but was unable to replicate the issue. Here are the steps I performed:
1. Add a Add/Edit Details screen and bound to entity say Product
2. Add a Browse Data screen and bound it to collection say Products
3. In the designer of Browse Data screen, change the List control to Wijmo Collection control
4. Select the columns layout of this screen.
5. Set a tap action to "edit selected" and set it to Add/Edit Details screen of Step 1
6. Run the application
After doing so, Wijmo Grid did appeared and when I click/tap on any row then corresponding data is displayed in Add/Edit Details screen.
Let me know if I missed any step or if there are any other steps for same.
Regards