# Mattermost App v2.36.0 not opening on iPhone 8 with iOS 16.7.12

**URL:** <https://forum.mattermost.com/t/mattermost-app-v2-36-0-not-opening-on-iphone-8-with-ios-16-7-12/25656>\
**Category:** Uncategorized\
**Created:** [January 19, 2026, 1:32pm UTC](https://forum.mattermost.com/t/mattermost-app-v2-36-0-not-opening-on-iphone-8-with-ios-16-7-12/25656 "2026-01-19T13:32:15Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Marc3287](https://avatars.discourse-cdn.com/v4/letter/m/13edae/32.png) [@Marc3287](https://forum.mattermost.com/u/Marc3287)\
**Post date:** [January 19, 2026, 1:32pm UTC](https://forum.mattermost.com/t/mattermost-app-v2-36-0-not-opening-on-iphone-8-with-ios-16-7-12/25656/1 "2026-01-19T13:32:15Z")

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Hello,

Since about two days, my Mattermost app stays open one second and immediately close.

I have tried to uninstall and reinstall the app and restart the phone, with no success.

Here is my configuration :

- iPhone 8 with iOS 16.7.12
- Mattermost App v2.36.0
- Mattermost Server v10.11.8.

What should I do to make it work again ? I would like to keep this phone.

Regards,

---

<div class="post-metadata">

**Author:** ![darkcircle](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.mattermost.com/darkcircle/32/9349_2.png) [@darkcircle](https://forum.mattermost.com/u/darkcircle)\
**Post date:** [January 20, 2026, 10:39am UTC](https://forum.mattermost.com/t/mattermost-app-v2-36-0-not-opening-on-iphone-8-with-ios-16-7-12/25656/2 "2026-01-20T10:39:28Z")

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I also have the same problem.

iPhone 6s with iOS 15.8.5  
Mattermost App v2.36.0

Mattermost Server, Desktop client, and Android app are no problem.