Copy to clipboard doesn't work most of times. Neither using Ctrl+C nor Edit->Copy. Actually it works partially, because it copies selection to a VA clipboard, but it works only inside the IDE. So I cannot use standard Ctrl+V to paste (have to use Ctrl+Shift+V and then cursor up), and there is no way to paste it outside IDE - Windows clipboard is just empty.
Yes, I had copy RTF enabled. Turning if off solved the problem. The but remains however, because even with copy RTF enabled, VA should insert also plain text format into clipboard.