If I knew the strightforward and simple answer I would have given already but, this is a bit of a mess because it could be many things. I am not a developer so I dont have enough knowledge but here is my suggestion:
From the link above you will find the following advise:
Before You Ask
Before asking a technical question by e-mail, or in a newsgroup, or on a website chat board, do the following:
Try to find an answer by searching the archives of the forum you plan to post to.
Try to find an answer by searching the Web.
Try to find an answer by reading the manual.
Try to find an answer by reading a FAQ.
Try to find an answer by inspection or experimentation.
Try to find an answer by asking a skilled friend.
If you're a programmer, try to find an answer by reading the source code.Ok, so you have done step one: Try to find an answer by searching the archives of the forum you plan to post to.
Now do step two:
in Google search copy and paste this:
pink frames site:
http://www.magiclantern.fm/forum/index.phpThis will get you lots of info, unfortunately our search function is worthless since the forum was updated, I dont know why.

So you have to use Google.
Step three above... etc.
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Here is what I know about pink frames:
Usually a problem at the beginning of the implementation stage of RAW to a new camera. Never had a situation as you have posted, where the first frame is good and the rest are trash.
Ok to try to trouble shoot this issue by a more advanced person you will probably need to provide.
Again from the previous link here is some helpful advise:
Be precise and informative about your problem
Describe the symptoms of your problem or bug carefully and clearly.
Describe the environment in which it occurs (machine, OS, application, whatever). Provide your vendor's distribution and release level (e.g.: “Fedora Core 7”, “Slackware 9.1”, etc.).
Describe the research you did to try and understand the problem before you asked the question.
Describe the diagnostic steps you took to try and pin down the problem yourself before you asked the question.
Describe any possibly relevant recent changes in your computer or software configuration.
If at all possible, provide a way to reproduce the problem in a controlled environment. So far you have done step 1.
What about step 2..
In step 2 specific information about the camera model, the build that you tested, the card that you used (may be a faulty car!), the settings in the RAW module, anything elese you can add!
If you provide little information you will get little help.
Continuing with step 3, 4, 5, etc.