CST - I'm having some problems with the time domain solver simulation using CST software

In this simulation, I am using a plane wave with a field strength vector of (0.707,0.707,0) as the excitation and have chosen a probe as the detector, but the resultant outgoing field strength is even greater than the incoming field strength, which is clearly not in accordance with the conservation of energy theorem. I checked the simulation settings and did not find a reason why this is the case. Or what can I do to make a normalization of the result.

 

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