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Help needed! Trello synchronization does not work on iOS app

Mateusz Fiedosiuk

Hi, for while now my iPhone Trello app is not synchronizing recently added/ changed cards.

It makes working both on desktop app and phone app a real pain and I am already looking for alternatives.

Have you faced this problem? Do you know ANY solutions?

Ps. My trello app is updated to the newest AppStore version

Accepted answers

Nicole Pavlovich

Hi! I'm on the iOS team and this is an ongoing issue we are actively investigating, but have yet to identify a way to reproduce. We would be very grateful if you help us get some more details:

Are there any items in your sync queue with a red error message on them?
Approximately how many items are in the queue?
Can you add a screenshot from account -> developer tools -> diagnostic reports for me?

- Nicole, Trello iOS Engineer

All comments

Nicole Pavlovich

Hi! I'm on the iOS team and this is an ongoing issue we are actively investigating, but have yet to identify a way to reproduce. We would be very grateful if you help us get some more details:

Are there any items in your sync queue with a red error message on them?
Approximately how many items are in the queue?
Can you add a screenshot from account -> developer tools -> diagnostic reports for me?

- Nicole, Trello iOS Engineer

Mateusz Fiedosiuk

Hi Nicole,

I really appreciate your reply!!

I am answering your questions below.

Are there any items in your sync queue with a red error message on them?

I have not noticed any red error message in the sync queue

Approximately how many items are in the queue?

24 items at the moment. It varied in the past but the synchronization seems to stop completely for a few days now.

Can you add a screenshot from account -> developer tools -> diagnostic reports for me?

I made a couple of screenshots and I am attaching it here.

Please let me know, if you need any more screenshots/ information!

I love Trello for 5+ years, but this synchronization issue is really driving me apart now

Nicole Pavlovich

So from your diagnostics I'm seeing a lot of timeouts and network connection lost. Can you try:

- Attempting to sync with your device only on cellular data (wifi off)

- Attempting to sync with your device only on wifi (cellular data off, can do this by turning on airplane mode but keeping wifi on)

- Using a different wifi network than you have been using

Also, if you update to our beta version of the app by joining through TestFlight, there is a version (2025.14) coming in a few days that will add additional logging specific to the sync queue to these diagnostic reports.

You can join via this link: https://testflight.apple.com/join/cRWMcQsr

Or in the app, go to Account -> Be a Beta Tester

If your queue remains stuck, please reach out to trello-ios-beta@atlassian.com so that we can communicate directly. I will be out of office next week, but will be happy to continue trying to debug this when I'm back!

Mateusz Fiedosiuk

Hi Nicole,

I have registered to beta and it works fine now!

It’s hard to say how much did you help!

Thank you so much 🙌🙌🙌

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