Hi @Benjamin Cengic,
Thank you for posting your question in the Microsoft Q&A forum. Let me address your two questions in detail:
1. Has anyone experienced this issue with Microsoft’s default icons when publishing an app via link in Power Apps?
Yes, this issue has been reported by other users. When using Microsoft’s default icons and publishing via link, the icon may not render properly on the Teams mobile app. This behavior has been observed across multiple environments and devices. For example, users have noted that Power Apps tabs and icons sometimes fail to load correctly on mobile, even though they appear fine on desktop and web clients.
2. Are there any known limitations or additional steps to ensure that the icon is shown correctly in the Teams mobile app?
Yes, there are known limitations and a recommended workaround. You can try my suggestion: Upload via Teams Admin Center
To deploy the app organization-wide:
- Go to https://admin.teams.microsoft.com
- Navigate to Teams apps > Manage apps. > Customize app store like my screenshot bellow and Upload the ZIP file of the Power Apps application (exported from Power Apps):
- Assign apps to the App setup policy to automatically show them to users (e.g. pin them to the Teams left sidebar)
This method may help the app, and its icon are fully recognized by Teams across all platforms.
I hope my suggestions helpful for you! If this workaround does not resolve the issue for your users, please note that this behavior is currently considered a platform limitation. I recommend submitting feedback directly to Microsoft via the https://feedbackportal.microsoft.com/feedback or through the Microsoft 365 admin center to help prioritize a fix in future updates.
Best Regards.
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