hyperswarm: Errors from utp-native

Has anyone seen this error with utp-native?

node[51393]: ../src/node_buffer.cc:220:char *node::Buffer::Data(Local<v8::Value>): Assertion `val->IsArrayBufferView()' failed.                         
1: 0x1011c2f75 node::Abort() (.cold.1) [/usr/local/bin/node] 
2: 0x10009cfe9 node::Abort() [/usr/local/bin/node]                         
3: 0x10009ce51 node::Assert(node::AssertionInfo const&) [/usr/local/bin/node]                                                                          
4: 0x100079ce9 node::Buffer::Data(v8::Local<v8::Value>) [/usr/local/bin/node]                                                                          
5: 0x100075683 napi_get_buffer_info [/usr/local/bin/node]                  
6: 0x1059da6b0 utp_napi_bind(napi_env__*, napi_callback_info__*) [/Users/paolofragomeni/projects/optoolco/x/node_modules/utp-native/prebuilds/darwin-x64/node.napi.node]                                                    
7: 0x100953c36 uv__udp_io [/usr/local/bin/node]                            
8: 0x10095764f uv__io_poll [/usr/local/bin/node]                           
9: 0x1009448f1 uv_run [/usr/local/bin/node]                                
10: 0x1000da345 node::NodeMainInstance::Run() [/usr/local/bin/node]         
11: 0x100072e63 node::Start(int, char**) [/usr/local/bin/node]              
12: 0x7fff6a6ab2e5 start [/usr/lib/system/libdyld.dylib]                    
[1]    51393 abort      INST=1 ./bin/x.js