There will be an update release for the 0.6 stable line soon fixing the following bugs:
- Unexpected error running tools (Expected a filter_sink instance here)
- Problems with tabs on the bottom
- Crashes interacting with the projects window
- A couple of other minor problems
If you are experiencing the unexpected error running tools, there is a simple fix. Edit the tool that displays the problem, select the “Console I/O” tab, check the settings, and then press OK.