My 4 separate light systems cause no interference.

The enduro bike has a SP PD-8 dynamo and a B&M Lumotec IQ-X headlight + a B&M Secula Plus taillight.
The touring bike is also with a SP PD-8 dynamo, and a B&M IQ2 Luxos U headlight + a Toplight Line Brake Plus taillight.
The "shopping" townie & commuter uses an Alfine dynamo, and a B&M Lumotec IQ Cyo N Plus + Toplight Line Brake taillight.
The fixie uses a Fenix BC30R headlight, and a Hotshot blinkie.

All have/had wireless computers at one point of time or another, never noticed any interference.