Hi!
A problem found with sunday, was fixed in the next release to come version 3.3.3 (think this release will be ready only next week).
About Module Calendar, ths one is not linking today to the date selected in calendar, but to the event. (so, that's why it is displaying the "next date" and not the clicked date).
This will be an enhancement to come soon (maybe not ready for next release, but will if possible!)
In all cases, iCagenda is in evolution since a few months, to add more possibilities about dates, and some work need to be done to get it full complete.
So, your report is an issue i will check to solve it as soon as possible
Thank you!
Cyril