In Handbrake, when I transcode mp4 to mkv, the output file is missing audio if I set the audio codec to AAC (FDK) or to AC3. However, the output file has working audio if I set the audio codec to use Vorbis or AAC passthru. (passthru is, of course, expected to "just work")

Does this mean that I'm missing package(s) that Handbrake needs for the transcoding? I do have the following packages installed, which I would have thought would be enough.

Code:
computername:~ # zypper se -is aac 
Loading repository data... 
Reading installed packages... 

S  | Name        | Type    | Version    | Arch   | Repository 
---+-------------+---------+------------+--------+------------------- 
i+ | faac        | package | 1.30-1.15  | x86_64 | Packman Repository 
i+ | fdkaac      | package | 1.0.0-1.33 | x86_64 | Packman Repository 
i  | libfaac0    | package | 1.30-1.15  | x86_64 | Packman Repository 
i+ | libfdk-aac2 | package | 2.0.1-1.17 | x86_64 | Packman Repository 
computername:~ #  
computername:~ # zypper lr -d 
# | Alias                            | Name                                   | Enabled | GPG Check | Refresh | Priority | Type   | URI                                                                       | Service 
--+----------------------------------+----------------------------------------+---------+-----------+---------+----------+--------+---------------------------------------------------------------------------+-------- 
1 | Emulators                        | Emulators (openSUSE_Tumbleweed)        | Yes     | (r ) Yes  | No      |   99     | rpm-md | https://download.opensuse.org/repositories/Emulators/openSUSE_Tumbleweed/ |  
2 | games                            | openSUSE Games (openSUSE_Tumbleweed)   | Yes     | (r ) Yes  | No      |   99     | rpm-md | https://download.opensuse.org/repositories/games/openSUSE_Tumbleweed/     |  
3 | graphics                         | Graphics Project (openSUSE_Tumbleweed) | Yes     | (r ) Yes  | No      |   99     | rpm-md | https://download.opensuse.org/repositories/graphics/openSUSE_Tumbleweed/  |  
4 | hardware                         | Hardware tools (openSUSE_Tumbleweed)   | Yes     | (r ) Yes  | No      |   99     | rpm-md | https://download.opensuse.org/repositories/hardware/openSUSE_Tumbleweed/  |  
5 | http-ftp.gwdg.de-0a41a4ff        | Packman Repository                     | Yes     | (r ) Yes  | Yes     |   90     | rpm-md | http://ftp.gwdg.de/pub/linux/packman/suse/openSUSE_Tumbleweed/            |  
6 | http-opensuse-guide.org-bdebc1bc | libdvdcss repository                   | Yes     | (r ) Yes  | Yes     |   91     | rpm-md | http://opensuse-guide.org/repo/openSUSE_Tumbleweed/                       |  
7 | repo-non-oss                     | openSUSE-Tumbleweed-Non-Oss            | Yes     | (r ) Yes  | Yes     |   99     | rpm-md | http://download.opensuse.org/tumbleweed/repo/non-oss/                     |  
8 | repo-oss                         | openSUSE-Tumbleweed-Oss                | Yes     | (r ) Yes  | Yes     |   99     | rpm-md | http://download.opensuse.org/tumbleweed/repo/oss/                         |  
9 | repo-update                      | openSUSE-Tumbleweed-Update             | Yes     | (r ) Yes  | Yes     |   99     | rpm-md | http://download.opensuse.org/update/tumbleweed/                           |  
computername:~ #