I have a toolbar with the start/stop macro recording button (record-macro-toggle). When I click it to start recording a macro, its position on the toolbar goes blank and clicking it does not stop macro recording (though hover text changes to "Stops macro recording"). Once I stop macro recording, the button stays blank (and continues to do nothing). Restarting SlickEdit restores the button (until the next time I click it).
Running beta1 on Windows 7 x64.