Today I found 50 coins in pos but they are not visible anywhere in their wallet! what? was it an empty block? why can't I see him !! ??
That means u have an orphan, somebody else found the same block faster as you.
Are you using the newest wallet version released yesterday? U should enable precomputing, this will handle the zerocoin stakes much faster (so less change on an orphan!)
One more block did not appear, is it possible in more detail how to enable calculations?
Precompute must be enabled ??