Can't read negative number of bytes.

This completely ignores error handling, which probably should be added.
The code behavior doesn't change, as the existing comparisons and
asserts already promoted the signed value to unsigned.

profiler/src/main.cpp

@@ -295,7 +295,7 @@ int main( int argc, char** argv )
             else
             {
                 tracy::IpAddress addr;
-                int len;
+                size_t len;
                 auto msg = broadcastListen->Read( len, addr );
                 if( msg )
                 {