EspruinoWiFi - UDP / Broadcast not stable

Next test in isolated code. Turbomode enabled debug not enabled. It crashed too.

UDP Msg: 192.168.68.13:45962 - {"type":"SYS","name":"_M","cfg":187}
OK:187
UDP Msg: 192.168.68.13:45962 - {"type":"SYS","name":"_M"
ERR: UPD packet not JSON, ignore
UDP Msg: 44.34.99.102:8807 - 87}
ERR: UPD packet not JSON, ignore
UDP Msg: 192.168.68.13:45962 - {"type":"SYS","name":"_M","cfg":187}
OK:187
UDP Msg: 192.168.68.13:45962 - {"type":"SYS","name":"_M","cfg":187}
OK:187
UDP Msg: 192.168.68.13:45962 - {"type":"SYS","name":"_M","cfg":187}
OK:187
UDP Msg: 192.168.68.13:45962 - {"type":"SYS","name":"_M","cfg":187}
OK:187
UDP Msg: 192.168.68.13:45962 - {"type":"SYS","name":"_M","cfg":187}
OK:187
UDP Msg: 192.168.68.13:45962 - {"type":"SYS","name":"_M","cfg":187}
OK:187
UDP Msg: 192.168.68.13:45962 - {"type":"SYS","name":"_M","cfg":187}
OK:187
UDP Msg: 192.168.68.13:45962 - {"t
ERR: UPD packet not JSON, ignore
UDP Msg: 121.112.101.34:8762 - S","name":"_M","cfg":187}
ERR: UPD packet not JSON, ignore
UDP Msg: 192.168.68.13:45962 - {"type":"SYS","name":"_M","cfg":187}
OK:187
UDP Msg: 192.168.68.13:45962 - {"type":"SYS","name":"_M","cfg":187}
OK:187
UDP Msg: 192.168.68.13:45962 - {"type":"SYS","name":"_M","cfg":187}
OK:187
UDP Msg: 192.168.68.13:45962 - {"type":"SYS","name":"_M","cfg":187}
OK:187
UDP Msg: 192.168.68.13:45962 - {"type":"SYS","name":"_M","cfg":187}
OK:187
UDP Msg: 192.168.68.13:45962 - {"type":"SYS","name":"_M","cfg":187}
OK:187
UDP Msg: 192.168.68.13:45962 - {"type":"SYS","name":"_M","cfg":187}
OK:187
UDP Msg: 192.168.68.13:45962 - {"type":"SYS","name":"_M","cfg":187}
OK:187
UDP Msg: 192.168.68.13:45962 - {"type":"SYS","name":"_M","cfg":187}
OK:187
UDP Msg: 192.168.68.13:45962 - {"type":"SYS","name":"_M","cfg":187}
OK:187
UDP Msg: 192.168.68.13:45962 - {"type":"SYS","name":"_M","cfg":187}
OK:187
UDP Msg: 192.168.68.13:45962 - {"type":"SYS","name":"_M","cfg":187}
OK:187
UDP Msg: 192.168.68.13:45962 - {"type":"SYS","name":"_M","cfg":187}
OK:187
UDP Msg: 192.168.68.13:45962 - {"type":"SYS","name":"_M","cfg":
ERR: UPD packet not JSON, ignore
-- crash --