Lost stop on Laurenskerk Surround Organ

I have had the organ for a while and only recently started to use it a lot. On my installation the Orlos Bas 8v on the Chamade produces no sound. It is the only stop with which I have a problem. Have I done something or do other installations have this problem as well?

From their site:

“ The Chamadewerk is normally operated from the IIIrd manual by means of a drawstop called Chamade aan. This is the operation as designed by the manufacturer of the organ.”

You can also try to reset the parameters of the keyboard manual III.

The Orlos Desc 8v on the Chamade does work, the other half of the rank of pipes.

Is it possible you aren't playing the Orlos B stop below middle C where its range is? This is one rank divided into bass and treble stops.

I am playing below middle C. There are 3 stops that are split on the Chamade. The others work as expected.