Latin Spanish prompts are not accessible in System Recordings

I have installed the Latin American Spanish prompts in Sound Languages (es_419). I can confirm the recordings are installed and present on the system with the correct permissions:

[root@pbx es_419]# pwd
/var/lib/asterisk/sounds/es_419
[root@pbx es_419]# ll |head
total 47816
-rw-r--r-- 1 asterisk asterisk  39381 Dec  7 04:37 1-for-am-2-for-pm.alaw
-rw-r--r-- 1 asterisk asterisk  39381 Dec  7 04:58 1-for-am-2-for-pm.g722
-rw-r--r-- 1 asterisk asterisk  39381 Dec  7 04:29 1-for-am-2-for-pm.ulaw
-rw-r--r-- 1 asterisk asterisk  13375 Dec  7 04:37 access-denied.alaw
-rw-r--r-- 1 asterisk asterisk  13375 Dec  7 04:58 access-denied.g722
-rw-r--r-- 1 asterisk asterisk  13375 Dec  7 04:29 access-denied.ulaw
-rw-r--r-- 1 asterisk asterisk   9660 Dec  7 04:37 activated.alaw
-rw-r--r-- 1 asterisk asterisk   9660 Dec  7 04:58 activated.g722
-rw-r--r-- 1 asterisk asterisk   9660 Dec  7 04:29 activated.ulaw

In the GUI, when I browse to System Recordings and create a new system recordings from stock recordings, taking "1-for-am-2-for-pm" as an example, I can see the recording and play it in the GUI for English:

But the same recording shows as not present for LatAm Spanish:

This is true of ALL es_419 prompts, none show up in System Recordings.