Stability issues in 5.3.0 and earlier

Since starting with multiple notification profiles, changing the behavior in certain time intervals, the application became somewhat unstable. Unfortunately. Every (half) hour the application checks if you are on the correct profile and optionally sets a trigger to activate a new one. In several cases the old tasks/alarms weren't removed while new ones were created. This caused too much work in the application where notification was executed in parallel (visible in 'About|Notification history'). As from 5.3.1 this should finally be fixed. Let me know if you still experience instability.