Video but no audio on mkv

Please tell me I don’t have to ,yet again, re-encode a billion tv episodes b/c something is not supported.

Here is the file’s audio info:

Audio #1
ID : 2
Format : AAC
Format/Info : Advanced Audio Codec
Format profile : HE-AAC / LC
Codec ID : A_AAC
Duration : 41mn 30s
Channel(s) : 2 channels
Channel positions : Front: L R
Sampling rate : 48.0 KHz / 24.0 KHz
Compression mode : Lossy
Delay relative to video : -105ms
Title : Stereo
Language : English
Default : Yes
Forced : No

Audio #2
ID : 3
Format : AAC
Format/Info : Advanced Audio Codec
Format profile : HE-AAC / LC
Codec ID : A_AAC
Duration : 41mn 30s
Channel(s) : 1 channel
Channel positions : Front: C
Sampling rate : 48.0 KHz / 24.0 KHz
Compression mode : Lossy
Delay relative to video : -105ms
Title : Mono
Language : English
Default : No
Forced : No

Hi,

What firmware are you running on your unit?