Hi again!
you have to convert your osc-message with [packOSC] (and decode it with
[unpackOSC] on the receiving side) [udpsend] only takes raw-data (lists of bytes (disguised as floats))
I've used [packOSC] to send data to [udpsend] as in the help patches, but I receive error sending floats or negative values. You can look at this at attached patch.
Saludos!