What nightly are you on? 040815 (08 April 2015)
Clean or Dirty flash? Clean
Custom kernel? No
When did it start? After first boot and initial setup.
The Carousel by Dropbox app crashes when loading once the Dropbox account is linked, on the screen where it shows all the photos. Clearing the app data and cache and setting up the app again can reproduce the crash. Problem persists after reboot.
Steps to replicate
1. Install Carousel by Dropbox from Google Play Store
2. Start Carousel and connect to Dropbox account that has some photos in it
3. App will crash once the Dropbox account is linked and the gallery loads up, and on every subsequent attempt to start the app.
Logcat @ http://pastebin.com/26AJ7wFi
Note pastebin is set to expire after a month.
EDIT: Formatted nightly version date
EDIT: Added note to description about problem persisting after reboot.