FR-AV2 Shouting in the mic input 1, audio from input 2 +86db

Testing the Tascam FR-AV2
I had only a mic plugged in input 1, but still was recording the two outputs, this is from output 2, added 86db in post. You can hear me in the sections where I screamed in the microphone (SM58) in the channel without the microphone. At a normal recording level vocals are overshadowed by the noise.
This isn't a huge deal. But the spill of me shouting is a little sus.

Date : 2025 01 17
Firmware v1.03

I'm talking French here. A B C D E F G A, Comment ça va ce soir.