Bleed through center channel AVR-X2300W

[OregonRider]

I just started getting a local FM channel bleeding into the center channel of my 5.1 system.
I listen to this station a lot via the Internet Radio input.
Last night I was watching TV via the CBL-SAT input and I could hear the radio.
It seems that regardless of the input I choose, the radio station audio comes out of the center channel.
FWIW I bought this AVR new in 2018. I have made no changes in over two years (when I replaced the speakers).
Thanks in advance.