I'm having a bit of a problem with this constraint. The value is set to 4 and the weight to 100%, FET is able to calculate a schedule, yet there is a teacher that has more than 4 gaps. I recalculated the schedule for a second time, once he had 7 gaps, once 6. For all others teachers, the limit of 4 was met.
Is this a possible bug? I read the help text for these problematic constraints, yet I'm not really sure if this applies...
It is certainly not a bug, because FET is doing double checking: while generating, and after generating. Nobody else reported such a bug.
I need your locked timetable and I'll check. But I know that you don't want to share your file...
Maybe make your file anonymous. So rename teacher names, ... Then Liviu or me might have a look. There must be a bug in your data set. You can sent us by email. We won't publish your file.
No, sharing the file is fine. I will send it per email. It just wasn't necessary to share my file for the Mac bug since it is easily reproducible with just some very basic data.