Copy and paste over Remote Desktop
Use the normal editor clipboard commands in a Remote Desktop session. Clipboard redirection is a Windows session setting and must allow the data formats your workflow needs.
A plain-text clipboard test helps distinguish session redirection from document-format or image policy.

Use it in your application
Confirm ordinary copy and paste in another application within the same session, then test the editor with the same content.
HTML and images may behave differently from plain text when remote clipboard formats or local image access are restricted. Check the editor resource and pasted-image policies alongside the session settings.
The public paste APIs use the current clipboard and the same guarded pipeline as editor commands. Run them on the UI thread after readiness.
await editor.Editor.PasteAsync();