Update upstream-issues.md

Author: DanTup

upstream-issues.md

@@ -7,11 +7,18 @@ Many feature requests for Dart-Code require some implementation in upstream repo
 
 New items are always added to the top of the list.
 
+## Unable to copy/paste with Cmd+C and Cmd+V in embedded DevTools windows on macOS
+[github.com/microsoft/vscode#129178](https://github.com/microsoft/vscode/issues/129178)
+
+Using Cmd+C/Cmd+V for copy/paste in embedded DevTools windows doesn't work because some of the events appear to be dropped.
+
+
 ## Debugger shows "Paused on Entry" if "continued" event arrives too soon after "stopped" event
 [github.com/microsoft/vscode#238591](https://github.com/microsoft/vscode/issues/238591)
 
 When multiple isolates are used, some isolates incorrectly show "Paused on Entry" in the UI even though they were only temporarily paused at entry while breakpoints were configured.
 
+
 ## Allow Grouping of edits in Fix All in Workspace by default
 [github.com/microsoft/vscode#207580](https://github.com/microsoft/vscode/issues/207580)