Can't edit in place the Title and Content fields

Steps to reproduce:

1. Login as Admin
2. Create an AWM app with a Title and Content field (Page fields)
3. Add an entry to this application
4. Go to the app's Home page livetable
5. Click on the added entry to go to its page
6. Click on 'Edit' (small Pen) button next to each field to edit it in place

Expected results: The fields can be edited.

Actual results: The user can't edit the fields.

Note: Standard Short/Long text is working, it appears the issue is only for the Page fields.

NOTE: This issue only reproduces on 13.4.5, it is working on 13.4.4 and 12.10.10.

The workaround is to use the page Edit button (Inline Form).