So, as the title says, I cant enable it.

At first I was able to use both 'Hey Bixby' and 'Ok Googe' but after Oreo Update I no longer can.

I've already disabled Bixby (as I prefer google assistant) but when I go to enable voice on the Google app, it asks me to set it up but its not actually listening at my voice to record it.

How can I fix this one?

I've looked for solutions everywhere and tried most of the common things, don't really want to do a factory reset unless its the only choice.