I searched the messages but i didn't find any post about that: When creating large panoramas the color correction doesn't work as expected. After initial detection one reference image is set and color correction is set to "on". 1) As you can see in image 1, colors start to shift and even some weird color areas are visible. 2) Changing to "gamma only" will leave the colors untouched but you can still see that brightness values are not correct (image 2) 3) But the biggest problem of all is, that all subsequent changes are ignored - only the image you are touching is changed in some way (see image 3 where i added a color anchor on top of the tower). This leaves you in a situation where the panorama color is must be calculated correctly after initial detection or you can throw away the project and change to PTGui ;-)
I'm not sure how much of the engine was taken over from the 2.0 version, but there were similar issues with the old engine and large panoramas.