vplexcli array re-discover not working

Hi,

I am trying to rediscover a midrange storage system behind the vplex.
Rediscover is working from vplex gui without a problem.

I want to do that now with command line and tried the "array re-discover" command direct under the array path.

Found the description in VPLEX-Command-Reference-Guide and tried it without --force parameter, but no success.

In the reference is mentioned that the should be a question after submitting the command.

When I submit it, nothing is happening; no response at cli. I think its doing nothing.

I found no log for deeper information.

Any idea?

thx