Activity Search doesn't display activities with no "With Contact"
- Create a new activity without anyone listed as "With Contact".
- Search for the activity from Find Activities.
I hadn't considered the use case of an activity with no "With Contact", but apparently my client has - and it's not a required field. So it seems that these activities should show up in search.
To upload designs, you'll need to enable LFS and have admin enable hashed storage. More information