iPad and iPhone not consistent after sync

[kdf63]

I'm sync'ing with MobileMe and both units aren't consistent.

I'm getting a synced successful on each.

Why aren't the items listed in the same order in the same calendar on both units?

My ToDos icon on my iphone has 37 and my iPad has 5.

My iPhone has 3 starred events and my iPad has 7.

All other tabs are correct.

Thxs for your help.

[cartonchen]

I have the same problem. The iPad shows 1 starred but the iphone shows none. The iPad has a folder showing 7 items, and iPhone is missing 4 items in the same folder, etc., etc.

This should be investigated and fixed. Otherwise, this app is useless.

[Toffeenut]

I have the same problem as well, things on the iphone fail to show on the Ipad, really annoying and means the ipad is useless for task management.

A fix would be appreciated.

[cartonchen]

Sync'ing between an iOS device and Mac is fine. Sync'ing between an iOS device and MobileMe is the problem.

[belovedra]

i find sometimes that it takes a few refreshes of the screen before I see all my changes.

I have seen the same behaviour as well. However, I have also noticed some actual problems in the sync between a single iPhone and MobileMe.

I use mostly 2Do, but occasionally open iCal on the Mac (i.e. 2Do <-> MobileMe <-> iCal). I mostly connect my iPhone to the internet using my home WiFi, but sometimes I use 3G. Today I opened iCal and noticed some things that were out of sync. The following are (I believe) the relevant sequence of events:

- previous days, yesterday and this morning, I marked some tasks as completed, some of which were for the previous day, and deferred others
- I closed the app, which, as per my settings, triggers a sync with MobileMe (on this occasion via 3G)
- just now I went into iCal on my Mac and noticed that the tasks hadn't updated, so I opened up MobileMe in my browser, and found that it reflected iCal, not 2Do (i.e. some of the changes to the tasks I had previously made had not come through, although I'm not exactly sure if only *some* tasks failed to sync, as there were quite a few changes I made)
- I then tested changing one task that I should have done yesterday, deferring it to today, and manually synced from 2Do (this time via WiFi)
- in my browser, I logged out of MobileMe then back in again (I know I don't need to but just to be sure), and this time I could see the task had been changed, but the ones that I had changed yesterday and before were still not synced correctly

Conclusion:
I don't think the time of day, or even the type of connection, has anything to do with it, and is just a red herring. It just *feels* like, when I synced from 2Do on the iPhone, the changes possibly didn't update correctly on the MobileMe servers. Then subsequently, it *feels* like 2Do simply noted that it had already synced these tasks that had been changed, noted that no changes had been made to the MobileMe data, and decided it didn't need to try to update the server again with the tasks in question.

I'm sure this is a hard one to diagnose, but perhaps Support could somehow test this? Specifically, the scenario where a background sync occurs (when 2Do is closed on home button being pressed), the sync then has problems (e.g. bad connection due to 3G reception), and the app thinks the tasks have been updated on MobileMe when they haven't. Or maybe MobileMe is not updating correctly on the server side? In which case, maybe the 2Do MobileMe sync needs to do a full sync every time (or maybe only when sync running in the background)?

[belovedra]

Update to my previous post. Interesting development.

I decided to try a Merge Sync (Settings > Sync > [MobileMe] Next Sync Action > Merge Sync) to see if it forced the above mentioned tasks to sync. After I manually synced, I noticed that the tasks hadn't changed in MobileMe. But then, when I checked 2Do, the tasks were not there anymore! I am not sure at what point they disappeared, and may well have gone before this sync. I had marked them completed, and I *may* also, although I am not sure if these were the ones, have slightly tweaked the recurrence settings of some of the tasks. In iCal, their date was 2 days ago (27 March 2011), so I assume this is when the tasks went missing. I could only spot a couple of tasks missing, so I don't know if they were the only ones affected.

At this stage, I decided to restore my 2Do tasks from a previous point, from the Auto Backup list (remember I have 2Do set up to sync and backup automatically every time I close the app, which happens a few times a day). I noticed that auto-backups between 9 March 2011 and this morning were missing (i.e. 10 March to 28 March 2011). I have not changed the backup settings, and apart from updating to each new latest 2Do version from the App Store as it is released, I can't see any reason for this to happen on its own. There were still backups from 9 March 2011 and before in the list.

I restored data from 9 March 2011, and the missing tasks were there, but of course, so were a lot of other tasks that are no longer relevant, and there were many missing which I have since created. I restored from the latest backup (earlier today), and bizarrely found that the restore action had actually kept the tasks from the old data set, and brought in the ones I had from earlier today. I decided this was something to do with the app database being skewed and decided to reset it (Settings > Advanced > Reset Application Data).

Just to be difficult, I restored from the backup from 9 March 2011 again, then restored on top of that with data from earlier today. This time, it all looked OK with no old tasks. However, I still had to recreate a couple of my missing tasks from iCal from a couple of days ago (they are recurring, but I cannot say for sure that that had anything to do with it). And then, after the Full Merge sync went ahead, I had to clear out all the old and duplicated tasks that resulted from it. I don't think there has been any data loss though, so all is OK.

After doing a normal sync again, all continues to look OK, but I guess only time will tell. And of course, I cannot say for certain that the issues I had were to do with a slightly corrupt database on my iPhone, or 2Do MobileMe syncing issues, or even server-side MobileMe-only problems. But I hope this helps Support.