Thank you for posting.
I am unable to replicate the issue you are having, but I only have access to FileMaker Pro 11.0v4 on OS X 10.7.2 today.
I followed your steps to reproduce the problem and was able to see the complete file path data for PNG, TIFF and JPGs.
Since you have posted that you have FileMaker Pro 11.0v1, I suggest you try updating to 11.0.v4 to see if it makes any difference. You can find the update at this link:
As soon as I am able to test on a Mac with Snow Leopard, I will post my findings.
Testing this in Windows Xp, I was able to replicate this for files of type jpg, gif, bmp--the only types in the folder from which I imported pictures.
In each case, the FilePath is the ONLY data stored in the container field. What's missing is the additional lines of text inserted preceding that "fully qualified path".
As a work around, a looping script that extracts this file path to a variable and then uses it to re-insert the image with insert Picture produces a reference that includes the missing lines of text.
Thank you, as always, for the contribution.
Development and Testing have confirmed this issue, however there is no additional information at this time.
Hopefully the workaround suggested by PhilModjunk will be useful in your solution.