First, download the Mattermost app on AppStore.(now, version MM - 1.30.1)
You login to a workspace. Then logout (The error will sometimes appear: “Tap relaunch to open the app again. After restarting, you can report the problem from the settings menu.”)
If you continue to login to that workspace, there is no error.
If you login to another workspace, the App will access the Channel screen but will be loading forever in the lazyload state
-Kill the app and reopen it, it will be saved forever by lazyload screen, so the only way is to delete the application and download it again.
Thank you @ahmaddanial so much for this quick feedback. I have upgraded to version 1.31, now the bug on the lazyload channel screen is no longer available, but every time I log out, the app crashes and asks for the relanch app but clicking relanch still fails and can’t relanch the app. This is a replay of my error: