have you tried alt+rightclicking the node/plugin?
works for me, this way you force the dynamic plugin to recompile.
no need to have the vvvv code editor open at the same time.
Tested and working in both hlsl and plugin code editor.
Note that if the code editor is closed it’s still not possible to get the plugin to sync unless v4 is restarted (or another change is made with the editor open). This isn’t a massive issue.
How about a command line argument to enable auto reload? sexy