Same problem
however i did notice the arduino is constantly sending 4 byte messages
captured over 5 seconds:
F5 B2 52 FA F5 86 52 FA F5 86 52 FA F5 86 22 FA F5 B6 52 FA F5 86 52 FC F5 86 52 FA F5 86 52 FA F5 86 52 FA F5 86 52 FA 49 86 52 FA F5 86 52 FA F5 B1 52 FA F5 86 22 FA F5 86 22 FA F5 86 52 FA F5 A6 52 FA F5 86 52 FA F5 B1 52 FA F5 86 52 FA