I've built 4 standalone apps which communicate with each other with udpsend/udpreceive (on the same computer).
Sometimes when I launch the applications, the communication between some standalone apps doesn't work and I get an error message in the status window of the related standalone :
net.recv.udp: OSC packet size (131079) not a multiple of 4 bytes: dropping
net.recv.udp: OSC packet size (65543) not a multiple of 4 bytes: dropping
if I close all the standalone and I restart them in the same way as I did before (same order, same message to send/receive) … it works
Mac Pro with 2 x 3.0GHz Dual-Core Intel Xeon
Mac OS 10.4.10