In lab classes, there is the main lecture section, and then a lab in addition to that. When generating different schedules with the lab selected under the classes, the lab is counted as the entire class and will be put on the schedule instead of the class, instead of being there in addition to the class.
Example:
CMPE-480-01
CMPE-460-01
CMPE-460-01L1
CMPE-550-01
CMPE-530-01
CMPE-530-01L2

The generated schedules will show:
(Lecture section) XOR (Lab section)
instead of the expected:
(Lecture section) AND (Lab section)