Note plays different tone than set to. Weird.

Hi everybody! I have a problem in Garageband.

Tried to make a beat, used midi keyboard, and then corrected some notes.

It was all fine, but then, suddenly when I press play, some notes play different tones than set to in editor.

It’s very weird, didn’t find any solutions online. Can somebody please help?

Video link here: https://youtu.be/OpfMgOay-sQ

Thanks :)