Calendar issues since upgrading to iOS 9.0.2 on 5S

I've been having a similar issue while trying to establish alerts in a new calendar item or just updating a calendar event that was already in place. There seems to be no rhyme nor reason to what is changed when entering them. I've taken to entering the first alert in the second position and the alert time neatest the event in the first alert position. Sometimes I have to enter and re-enter the alerts multiple times before i get the times I want. It has never seemed to matter which alert was in what position as they would still happen in the correct chronological order irrespective of the slot they were entered in. However, in the past I have never had one entry change the other to an identical one, that has only started happening since the advent of iOS9.

Regarding your second question (opening a day from month view), try double tapping the day.

I have yet to find a pattern that will work every time to set up the alerts so if you find one please post it here. One suggestion, if you already haven't done it, is to submit a report to "http://www.apple.com/feedback/". The more people who submit a report, the sooner Apple may look into the issue.

This is starting to drive me nuts. I just tried to duplicate the problem and can't. I am beginning to think this phone is haunted as I'm starting to hear a voice in the background saying something about having entered the "Twilight Zone"?!?!

It seems that when you first set up a calendar item and enter the 2 alerts you want it may reverse their display order but It will still alert you the way you wanted if you don't try to change anything before adding the event to your calendar. The problem seems to come when trying to change an alert item to something else. I makes no difference if it is a calendar item that was previously entered or if you are still trying to enter a new calendar item, if you make a change to either of the alerts, after its initial entry, that is when the problem arises. There doesn't seem to be any rhyme or reason to what is happening and when trying to get the desired results you have to try multiple times in different entry orders to get it to finally accept the entries you want. Weird!!

I'm setting up multiple appointments to get around this bug. Really getting old, way too many bugs. Regretting the 6s and upgrade from 8.

iPhone6s 9.0.2

Having calendar alert issue . I put a time like 1 hour alert then put in second alert 30 minutes before then I look at the first alert went to 30 minutes and second 1 hour before. Put in a time for the first alert for 1 hour set the second want to put 30 minutes it set both of them 30 minutes . with IOS 9.02

I Am having same issue with alerts. I've tried several things and looked online for answers and even was in a different string of apple support issues about calendars and the person trying to help me couldn't get their alerts to act up like mine is. My wife's phone is doing the same thing. Can't set two alerts without them both ending up the same. Has to be a bug but really frustrating

kkuff wrote:

I would really like someone from Apple Support to chime in on this. At least tell us they are looking into it.

...

Maybe I should post this issue in a different "community" to get Apple Support to look at this.

Maybe instead, you should read the Use Agreement that you agreed to by using these communities. Apple will not chime in here, and there is no other community into which they will do so either.

Apple Support Communities Use Agreement