Graduate School changes part time masters to full time

I am stuck in an unusual situation. I took admission in a part time masters program. The classes were supposed to be held in the evening and degree duration was 6 years.

But after only one years, the graduate school decided to change its policies, and abolished the part time masters which meant that all classes were now held in the morning. Needless to say this, this made it very difficult for people like me who were doing a full time job in the morning, to continue their masters. It became really difficult to adjust classes in such a way to cause least interference with my office timings, and i could not afford to leave my job.

Four years forward, i have managed to pass almost half of my courses, but my grades have suffered heavily due to unattended classes and missed assignments.

I am also quite dissatisfied with the quality of teaching and the general environment of our department. The teachers seem disinterested, there is general mismanagement and very little scope for research, not to mention almost no research funding.

My questions are:

1.) How common is it for gradate schools to change policies like this.? What can a student do in such a situation.?

2.) If i decide to drop out from this current program and decide to apply to a more accomplished program abroad (now that i have some savings), how could i explain the unfinished masters and the bad grades in my application.? Would the previous unsuccessful stint in Masters hurt my chances of getting admission in a reputable graduate program.?