It is in my opininon unbalanced, that so many provinces, that I conquered defect to the enemy, when the new day arrives. Even if I have armies stationed there! It even is so, that the armies also defect. That is really annoying! and unrealistic! 3 of 6 Provinces defected this time.

Usually in 1.0, if you have a garrison in the province, that is likely to revolt, the revolt is suppressed. And it is very rare, that the entire garrison runs over to the enemy. Maybe it was bad luck, but it happened so often in 1.5. that I think, that is not mere chance...