Q: Sudden problem: Adjustment panel blank (metadata and library OK). Thumbnail shown as file loads but then  image has dark blue cast and is not adjustable.  Have current version of Aperture running.  Help please

Two things I would try... For the blue cast on some of your RAW images, which Canon are you using? Have you updated to Camera RAW, version 3.13?

For the Adjustments tab, have you tried deleting your Preferences as outlined in the Aperture Troubleshooting basics?

Let us know.

You may need to register your camera with the the launch service database again, see this post by Alan Roseman: Re: Aperture 3 preview of raw file greenish

There is a "typo" in the command given in the link above, so read also the following posts on how to correctly enter the command and how the fix is supposed to work

Good luck.

Post back, if this does not help.

Regards

Léonie

FYI Leonie, pretty sure updating to 3.13 has the same fix without having to go through Terminal.

FYI Leonie, pretty sure updating to 3.13 has the same fix without having to go through Terminal.

This "Terminal" fix is only necessary for the cameras that have been moved from previous raw updates directly to MacOS X 10.7.4. Some cameras are installed, but not registered after the upgrade to 10.7.4.