New country filter KO ?

[oea]

(I've already posted about this but the thread is closed so I try a new here...)
Hello,

You've implemented a new filter to get all countries:
https://unogs-unogs-v1.p.mashape.com/api.cgi?t=lc&q=all
(to be able to get all 'archived' countries' ids)

But the 'all' filter doesn't seem to work, even in the api documentation page (with the Test Endpoint button)...
I've tried the api with "?t=lc&q=all" and with "?t=lc&list-type=all" and I am still getting only 16 countries...

And should we use "api" or "aaapi" url ?