Teams List not working on Tahoe 26.3

Question

Teams List not working on Tahoe 26.3

Patrick Richter 0

Hello,

I have several users who are having issues accessing the Lists tab in their Teams channels. The list will briefly load, then display "Please try refreshing the page." when using the browser to access the list there are no issues.

While troubleshooting, I tried clearing the cache and reloading, which worked briefly again. I also tried turning off "prevent cross-site tracking" in Safari to see if that's the cause, but I still have the same issue.

I tried on another unit that was running Teams Version: 26032.605.4378.6183 and Tahoe 26.0.1, and it worked flawlessly. With that same MacBook, I updated the OS to Tahoe 26.3, and then the issues showed up.

From what I'm reading, it is an issue with the WebKit update on the Mac side. Is there any word on when this issue might be resolved? My users rely heavily on using Teams for communication and using lists to track projects.

2 answers

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Answer 1

Jeanie H 11,895 Microsoft External Staff Moderator

Dear @Patrick Richter,

Thank you for posting your question in the Microsoft Q&A forum.  

As a moderator, I don't have the tools to investigate your specific account directly because this is a user-to-user support forum. Moderators and contributors, including external Microsoft employees, cannot directly intervene in Microsoft product features or access back-end systems. Our role is limited to providing technical guidance on reported issues, requests, or ideas. However, I will try my best to guide you as clearly as possible.

Based on what you said, the issue is affecting multiple users in your organization, not just one.

So, please help me test by re-adding the Lists tab to see how it goes. This will help us determine if the issue is coming from that specific channel or if it's related to their accounts.

I look forward to your support and response!

Jeanie H 11,895 Reputation points Microsoft External Staff Moderator

2026-03-02T00:58:08.75+00:00

Dear @Patrick Richter,

I hope you’re doing well.

I just wanted to gently follow up and see if you might be able to share an update with me, so I can better understand your situation and continue supporting you in the most appropriate way.

There’s absolutely no rush at all, please feel free to respond whenever it’s convenient for you. I’m always here and happy to assist whenever you need, and I truly respect your comfort and timing.

Thank you so much for your time. I look forward to hearing from you whenever you’re ready.
Patrick Richter 0 Reputation points

2026-03-02T17:08:48.8533333+00:00

Hey Jeanie H,

Removing and adding the channel back gives no change. It still seems to be an issue with Teams using WebKit in Tahoe 26.3, so until there is a fix from either you (Microsoft) or them (Apple), I am having users use the browser-based lists. Hopefully, an upcoming update in either Teams or on Mac will fix the issue, as I feel like this is an issue from other companies using hybrid hardware with Windows and Mac machines.
Jeanie H 11,895 Reputation points Microsoft External Staff Moderator

2026-03-03T06:51:52.5833333+00:00

Dear @Patrick Richter,

Thank you for sharing the details. I understand how frustrating this situation can be.

As a community moderator, I’d like to be transparent that we are separate from the Microsoft product engineering team, so we don’t have direct control over fixes or release timelines. However, your feedback is very important.

I would recommend submitting this issue to the Microsoft Feedback Portal so the product team can be aware of the impact and prioritize a fix or patch as soon as possible. If you’d like, we can work together to submit this feedback with the details you’ve already shared here.
Patrick Richter 0 Reputation points

2026-03-11T22:42:59.1033333+00:00

Hey @Jeanie H

It looks like the latest update for Mac Tahoe 26.3.1 has resolved the problem. I have tested on 3 machines now, and it looks to be working.

Answer 2

The behavior matches a known limitation with how some web content is embedded inside Teams, especially when browser/engine changes (such as WebKit updates in newer macOS versions) affect iFrame-based rendering.

From the available information, there is no published timeline in the context for a fix specific to Tahoe 26.3 or WebKit on macOS. However, there are supported workarounds for when a website or tab (including Lists) does not load correctly inside Teams:

Use the Teams web client in a supported browser (Edge, Chrome, Firefox, or Safari with the documented settings) to access the Lists tab, since the issue does not occur there in this scenario.
If the Lists content is exposed via a Website tab or similar, and it fails to load in the Teams client, use the built‑in option to open it externally:
- In the new Teams desktop client, when a website/tab fails to load, use Open in browser from the banner to open the content in a separate browser tab outside Teams.
If the tab is implemented as a Website tab and the site cannot be embedded in an iFrame, the supported resolution is to access the site outside Teams or via the Teams desktop client/web client where it works, as documented for similar website‑loading issues.

If Conditional Access or authentication‑related tabs are involved (for example, SharePoint-based Lists that trigger Microsoft Entra sign‑in dialogs), be aware that some tabs depend on web authentication paths that behave differently between desktop and web clients. In such cases, using Teams in a browser where those flows are supported is the recommended path until client behavior is updated.

Because no official fix or ETA for Tahoe 26.3/WebKit is documented in the provided context, the practical guidance is:

Continue to use Teams on the web (where Lists work) as the primary workaround.
Where available, use Open in browser or equivalent options from failing tabs in the Teams client.
Monitor official Microsoft Teams documentation and service communications for updates on macOS client compatibility.

References:

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Teams List not working on Tahoe 26.3

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