Unfortunately I wasn’t able to find any anomaly with this particular account. I created a new account for that user and assigned him all activity from old account. Sorry, afraid I can’t much of help.
Sorry for taking so long to answer, I was away from town for a few days. Yes, it is always only this one member getting ignored. Here are links to code samples.
I dig it a little more and it turns out that the problem isn’t only with BuddyPress but any kind of database query. For example when I try something like this `$wpdb->get_results(“SELECT ‘TEST'”);` it is ok when adding new post, but again returns empty array when post is in edit mode.