We upgraded the calendar element of Power Diary a few days ago. We identified however that this version was not sensitive enough on touchscreen devices. We have now rolled back to the previous version of the calendar system. This has addressed the issues with touchscreen devices. You may notice however that the red line that indicated the current time on the newer version is no longer visible. We'll bring this back when we next upgrade the calendar.
There is nothing you need to do regarding this change, however if you find the calendar is not working as expected please refresh your browser to ensure it is using the latest code. Of course as always if you have any questions please let us know.