Asus RT-AC5300 5ghz-1 shows up as both 2.4ghz AND 5ghz???

Not sure if this is normal or what's going on, but when I scan my network, my Asus 5300's 5ghz-1 band shows up as both a 2.4ghz and 5ghz signals.

I'm using channel 36 for that one band.

Any ideas? Or is this normal?

Using latest Merlin firmware.

I have my 5ghz-1 set exactly the same as my 5ghz-2 (except for the channels, 36 vs 161).

Wireless Mode: N/AC mixed
Channel Bandwidth: 80mhz

2.4ghz, 5ghz-1 and 5ghz-2 are all named differently.