Update known-issues-safari-browser.md

Added issue ### Other call participant unable to start screen share concurrently with macOS Safari user in Azure Communication Services 1:1 video calls

Author: mafreimane

articles/communication-services/concepts/voice-video-calling/includes/known-issues/known-issues-safari-browser.md

@@ -41,6 +41,14 @@ ___
 
 **Recommended workaround:** Users are advised to update to the latest macOS and Safari version (at least v17.2) where this issue has been resolved.
 
+
+### Other call participant unable to start screen share concurrently with macOS Safari user in Azure Communication Services 1:1 video calls
+**Browser version:** All.<br>
+**Azure Communication Service calling SDK version:** All.<br>
+**Description:** In Azure Communication Services 1:1 video calls, when a macOS Safari user shares their screen, another participant using a different browser cannot start screen sharing until the first participant stops their screen share. This limitation is observed across various combinations of browsers and operating systems but is specific to 1:1 calls. The issue does not occur in calls where both participants are using Safari on macOS.<br>
+**Known issue reference:** This regression is a known issue introduced on [Safari](https://bugs.webkit.org/show_bug.cgi?id=262791).<br>
+**Recommended workaround:** A temporary workaround is to ensure that only one participant shares their screen at a time in Azure Communication Services 1:1 video calls, when one of the participants is using macOS Safari.<br>
+
 ### Screen sharing does not work on macOS Ventura with Safari versions up to 16.3
 **Browser version:** Safari v16.1, v16.2, v16.3 (macOS Ventura 13.0).<br>
 **Azure Communication Service calling SDK version:** All.<br>