Brown folder in Diagram view of FM?

[rhythmz]

We have one model with numerous folders containing alias shortcuts with different joins from that in the main model. However, one folder is shaded brown as the others are all green. At the same time, we are have issues with a broken report that is built using this model. I dont know if this "brown" folder is having an adverse effect on the overall package.

Thanks for any ifo since I was unable to locate an answer mainly because I lack the proper terminology to search for the issue other than 'folder'.

[blom0344]

AFAIK Cognos distinguishes between 'warnings' and 'errors' when validating a model. A warning never seems to effect reports, but an error may indicate an object that does not validate properly. What is the level that you experience when validating?