Teams for Mac screen sharing permission loop on macOS Tahoe 26.4 — TCC permissions verified correct

Hi @Terra Strickland, 

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I appreciate your time to clarify the issue in detail and the troubleshooting steps you have tried. While I would love to resolve this directly, my current scope and resource limitations do not allow access to the internal systems needed for this type of troubleshooting. In this situation, I would recommend creating a support ticket to Microsoft since you have attempted to perform the initial troubleshooting steps.  

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On macOS, Teams screen sharing depends entirely on macOS Screen Recording (Screen & System Audio Recording) TCC permissions. When those are already granted but Teams still loops on the “enable Screen Recording” prompt, the supported remediation is to reset the macOS Screen Recording permission for Teams and re‑grant it, or to reconfigure it via System Settings.

From the available documentation:

1. Screen Recording must be enabled for Microsoft Teams under:
   • macOS Monterey: System Preferences → Security & Privacy → Privacy → Screen Recording
   • macOS Ventura/Sonoma and later: System Settings → Privacy & Security → Screen Recording
2. If the user did not allow screen sharing the first time, or if permissions are mis‑registered, Teams will continue to prompt until the permission is correctly set and recognized. The documented fix is to:
   • Quit Teams completely.
   • Go to the Screen Recording section in Privacy & Security.
   • Ensure Microsoft Teams is present and enabled.
   • If necessary, remove and re‑add Teams (for Monterey this is done via the “+” button; for Ventura/Sonoma and later, via the toggle after reinstalling Teams).
   • Restart Teams and rejoin the meeting; the user may need to drop from the meeting once when first granting permission.
3. For the new Teams for Mac client (com.microsoft.teams2), Microsoft explicitly notes that users can:
   • Turn on screen sharing “using the regular in‑app flow when they first try to screen share.”
   • Or “turn on permissions for screen recording under system settings” as an alternative.
4. There is also an optional “Use macOS content sharing” mode in Teams → Settings → General → Screen sharing. When enabled, Teams uses the native macOS sharing UI. In this mode, giving/taking control is not supported, but the same Screen Recording permission is still required and must be granted at the OS level.

Given the documented behavior, the supported path is:

1. Confirm that Screen Recording is enabled for Microsoft Teams in System Settings → Privacy & Security → Screen Recording.
2. If the loop persists, fully quit Teams, remove and re‑add or re‑toggle the Teams entry in Screen Recording, then restart Teams and re‑attempt sharing so macOS can re‑prompt and re‑bind the permission.
3. Optionally enable “Use macOS content sharing” in Teams Settings → General → Screen sharing to use the native macOS picker, understanding that remote control is not available in that mode.

If the issue continues after a clean permission reset and reinstall, it falls outside the documented remediation steps and requires escalation to Microsoft support with client logs from ~/Library/Application Support/Microsoft/Teams/media-stack/ for further investigation.

References:

• Teams for Mac - Overview and prerequisites
• Present content in Microsoft Teams meetings
• "Give Control" doesn't work when you share a screen in Teams
• Use a screen reader to share your screen in Microsoft Teams