DnD 5e 2024 sheet - Source Type and Source Detail unselectable

I've recreated my character using the 2024 character sheet, purchasing the 2024 Player's Handbook and dragging and dropping into the sheet. However, in the Features & Traits section, apart from my Feats, everything else is under the heading 'Other'. When I edit any of these (class abilities and Warlock Eldritch Invocations), the Source Type and Source Detail fields are greyed out and unselectable. Anyone know what's going on? Thanks.

Also, as a level 5 Warlock I should be able to prepare 6 spells and have 2 slots of level 3.. In the Spells section of the character sheet next to 'Show prepared only' it notes only 5, and there are no checkboxes next to level 3. A bug?

Sorry I don't have answers but would also like to know the answer. I want to change the source type so I can move this cards higher up the screen for easy access.