i dont have a explanation for this, perhaps you can help.
it seems with exposures of 90 secs or longer, the right side of the image does odd things. in these scenes it developed a yellow bar that turned green and more pronounced as the exposure time increased, and in very long exposures of 4minutes or longer it went black too on the right edge.
i have some shots of a dusk shot where the outside is mainly blue and it the right side of the image when purpleish... kindof interesting how the right side is a color close to the rest of the image in both case.
P25 with 35mm lens on cambo wds, Time shutter position, Capture one one shot cable, processed in captureone 4 (also appears in v3 and ACR).
2 images attached. entire kitchen photo at 2 mins, sink closer photo at 4mins.