Software 
Aperture: Avoid putting the computer to sleep while shooting tethered
It’s a good idea to avoid putting your computer to sleep while shooting tethered in Aperture or Image Capture. If the computer does go to sleep during a tethered session, your camera may no longer be detected, and it may … Continue reading
Aperture 3.3: Some images appear to be blank in the Viewer after rotating photos in iPhoto
After you use iPhoto to work with a library created in Aperture, photos that have been rotated using iPhoto may appear blank in the Viewer when you open the library in Aperture again.
Final Cut Pro X, Motion 5, Compressor 4: Unable to upload to YouTube using Gmail account
Find out what to do if you get this alert: “NoLinkedYouTubeAccount.”
Aperture: Some pixel dimensions are slightly different after upgrade to Aperture 3
The pixel dimensions for some RAW images in your library may be slightly different after you upgrade to Aperture 3.
Motion 5, Compressor 4: "Send to Compressor" presets with destination set to Source do not create files
When you use Share > Send to Compressor from a Motion 5 project, the job might appear to be successful, but a resulting encoded file is not created in an accessible location on the system.
Aperture: Book-specific filters don’t appear under the Loupe
If you apply a filter such as Sepia or B&W from the viewer’s Photo Filter menu to a book image, it will appear without the filter when viewed under the Loupe.
Aperture 2: Troubleshooting Basics
If Aperture isn’t starting up properly or performing normally, try these basic steps to troubleshoot the situation. Please note that these steps aren’t exhaustive and are not intended to cover any specific issue.
AirPort: Troubleshooting Back to My Mac issues related to an AirPort base station or Time Capsule
If you encounter issues using Back to My Mac with an AirPort base station or Time Capsule, use the troubleshooting steps in this article before contacting iCloud Support.
Aperture: Spot & Patch and Redeye Inspector palettes show different values than HUD
The Spot & Patch and Redeye HUDs do not always show the same values as their respective palettes in the Adjustments Inspector.
Aperture: Selection and target overlays for Spot & Patch, Redeye, and Crop don’t always appear
When using the Spot & Patch, Crop, or Redeye adjustments, you may notice that the target and selection overlays do not always appear.
