We are not sure if you understood @hubi179 s message correctly. As he said, it's probably not the signal of the wibutler that's causing problems but the return signal of the TF100L. Maybe it was accidently taught in as a switch telegram in the FSR14. In that case, it's not enough to reset the TF100L. It has to be "taught out" in FSR14.
Did you follow the step by step instruction from @hubi179 ? It was really good actually.
If you don't feel comfortable with your devices, please do not hesitate to contact an electrician.