Synchronization issue

Hello everyone,

I can confirm the same one-way sync issue and have successfully implemented the suggested workaround. I want to add a few more details that might be helpful for the diagnosis.

Based on the differences between the tasks in my lists, I would estimate that the synchronization problem has existed since about mid-August. It seems the sync was working correctly until then.

I also confirmed that the problem is consistently one-way. I created several new lists from my account and shared them with my partner, and the issue was the same for all of them: an initial sync of all tasks occurred, but no updates from my side were synchronized afterwards.

Following the workaround, we tried the opposite: my partner's account created a new list and shared it with me. I'm very happy to confirm that this has solved the problem completely. We have been able to add and update tasks from both accounts without any issues since.

As a side note, I first tried to duplicate an existing list with my partner's account. This worked, but when I shared the duplicated list back to my original account, only about two-thirds of the tasks were synchronized, which I could reproduce multiple times.

My final successful solution was to have my partner's account create a new, empty list and then manually move all tasks (including completed ones and notes) from the old list into the new one. This successfully migrated all data, although it did result in the loss of all task assignments, which had to be manually re-established.

Thank you very much djgrossman​ for this helpful tip! This confirms that the issue is indeed related to the list's creation process.