I see ft4, ft8, jt9, jt65, psk, sstv, hell, rtty, and CW in the menu.
Only tried ft8 so far but not impressed.
Discussion
How do you sync the clock on it?
So it wasn't set. Thought sure that would be it. I set time via FM RDS and confirmed it set the system time from that. Went back to FT8, still no decodes over 4 full cycles.
I would try to feed audio from the radio into your PC to help troubleshoot this. Maybe its internally in lower sideband mode or the audio is distorted or filtered.