When listening to OSC messages, we bind to a network port on init. It seems that this bind is not released when Cabbage stops Csound (before the score is finished). The situation arise when I have an OSC listener (OSCraw) in a plugin, use this plugin in a song in Reaper, close this song and then reopen it. When reopening I get a "bind failed" message from Csound (or no messages but it does not work). If I quit Reaper completely, then restarts Reaper and loads the song, it will work as expected again.
A simple example to test:
form caption("test"), size(330, 420), pluginID("tst1")
csoundoutput bounds(10, 10, 320, 400), text("Output")
Smess init 32
ka = 0
Smess,ka OSCraw 9001
i 1 1 [3600*24*7]