Critical Issues with Microsoft Teams and Microsoft Outlook on Android 16 (Login Failure, Infinite Loop, App Crashes)

Question

Critical Issues with Microsoft Teams and Microsoft Outlook on Android 16 (Login Failure, Infinite Loop, App Crashes)

Calvin Zolovoski 155

God, it is already 11 PM and my Microsoft Teams application has stopped working. It is completely unable to send messages, and after signing out, I cannot sign back inthe app only displays a blank page with an infinite loading loop.

Meanwhile, Microsoft Outlook keeps crashing repeatedly, especially while I am composing emails and I donno whether Ondrive will be affected.

Are there known issues between Microsoft applications and Android 16, possibly related to the security update released earlier this April? I would appreciate it if either Google or Microsoft could investigate and provide a fix as soon as possible.

Please Im begging both of you

Miller, Joshua 0 Reputation points

2026-04-20T00:44:06.5666667+00:00

I have been having the exact same issue. This is a work email that I NEED access to while I am out of the office. I can not longer log in to even see older emails. I am completely frozen out of the app.
Calvin Zolovoski 155 Reputation points

2026-04-20T01:15:35.6+00:00

Im so f up with this Miller, I still don't don't know when they actually do sth for this
Anders Malmgren 0 Reputation points

2026-04-20T16:22:54.81+00:00

Im having the exact same problem, cant send messages and only a few messages are being received.

If I remove data and restart then the spinner spins forever on the welcome page.
Daniel Anderson 0 Reputation points

2026-04-20T19:33:49.8166667+00:00

I'm having this same issue with Outlook, Teams, and Authenticator on Android 16, Samsung S25 Ultra. The most dangerous thing about this is the app sometimes loads but doesn't complete functions, so I have a bunch of emails that never got sent yesterday. This requires an urgent fix, especially for authenticator.

Answer accepted by question author

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Miller, Joshua 0 Reputation points

2026-04-20T00:44:06.5666667+00:00

I have been having the exact same issue. This is a work email that I NEED access to while I am out of the office. I can not longer log in to even see older emails. I am completely frozen out of the app.
Calvin Zolovoski 155 Reputation points

2026-04-20T01:15:35.6+00:00

Im so f up with this Miller, I still don't don't know when they actually do sth for this
Anders Malmgren 0 Reputation points

2026-04-20T16:22:54.81+00:00

Im having the exact same problem, cant send messages and only a few messages are being received.

If I remove data and restart then the spinner spins forever on the welcome page.
Daniel Anderson 0 Reputation points

2026-04-20T19:33:49.8166667+00:00

I'm having this same issue with Outlook, Teams, and Authenticator on Android 16, Samsung S25 Ultra. The most dangerous thing about this is the app sometimes loads but doesn't complete functions, so I have a bunch of emails that never got sent yesterday. This requires an urgent fix, especially for authenticator.

Answer 1

Hani-Ng 10,575 Microsoft External Staff Moderator

Hi Calvin Zolovoski

I found an update relevant to your situation. You may try the following troubleshooting steps to see if they help resolve the issue:

Restart your devices (power it off and then back on, rather than performing a reset)
Clear the cache for both the Outlook and Teams apps

If the issue still persists, you must try uninstalling the Android System WebView app by following the below instructions

Settings -> Search for "Android System WebView" -> App Details in Store -> Remove Updates
Reboot
Settings -> Search for "Android System WebView" -> App Details in Store -> Update

Note: If "Android System WebView" doesn't appear in the app list, go to: Settings -> Google -> All services -> System Services -> Select "Android System WebView", then:

Reboot
Launch Teams/Outlook & log in.

Reference: My Microsoft Apps have stopped working on my Samsung Ultra S25 - Microsoft Q&A

Best regards,

Daniel Anderson 0 Reputation points

2026-04-22T03:11:26.1233333+00:00

This webview thing worked a treat. I still don't understand how that has fixed it, but happy days!

One question: webview didn't pop up after reset, so I followed the instructions after "Note" - Do I not need to reinstall the WebView update?
Pablo René Ramírez Velázquez 0 Reputation points

2026-04-23T01:41:36.6833333+00:00

This answer helped me fix the issue. Thank you
Hani-Ng 10,575 Reputation points Microsoft External Staff Moderator

2026-04-23T03:47:26.78+00:00

Hi Daniel Anderson

Glad to hear that the fix worked for you!

Based on my understanding, you absolutely should install the update for Android System WebView. This will install the newest, fixed version, which is essential for security and to ensure all your apps continue to work correctly.
Fab C 0 Reputation points

2026-05-05T13:13:06.56+00:00

I have tried 3 times to do the steps above but with no success. Could it be that Android System WebView has not been already updated in Italy ?

Thanks

Answer 2

Hi Calvin Zolovoski

At present, based on what I’ve found, I have seen a several users who are in the same situation as yours. However, I have not found any official documents addressing this unexpected issue. I hope you can understand that as moderators I do not have direct access to system-level diagnostics.

In this situation, I recommend contacting your IT administrator and asking them to open a support ticket with Get support - Microsoft 365 admin | Microsoft Learn on your behalf so the matter can be escalated and investigated further.

I hope this information helps, if you have further questions, please feel free to let me know.

Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread.

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Critical Issues with Microsoft Teams and Microsoft Outlook on Android 16 (Login Failure, Infinite Loop, App Crashes)

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