Running RoxTerm 2.6.5 (GTK2) on Arch Linux, with Compiz and Emerald.
When closing the shell (bash -- with CTRL-D), the window fades out nicely, as expected:
But when closing by clicking 'X' in the window manager (or ALT-F4), I get this instead while it fades out:
This issue  DOES NOT occur when using other GTK2 VTE-based terminal emulators. Killing the roxterm process (kill -9) also does not replicate the issue. This  only happens when clicking 'X' or ALT-F4 from the window manager.
Any idea what's going on here?