Hi Markus,
Thanks for contacting us and sorry to hear that you’ve run into this issue! There aren’t currently any known issues with the Pro Editor tools. Could you please try closing down your web browser completely and then re-launching Ribbet? This restarts Adobe Flash and should resolve any problem. If you still have a problem then please try rebooting.
Let us know if you continue to have an issue and we’ll do our best to help sort this out!