[Jakobuz]

and in case if the plugin Buddypress is not installed, something like this might be useful:

// redirect if the url contains the word 'user' and if you are not logged-in
add_action('init', 'profile_redirect');
function profile_redirect() {
if(strpos($_SERVER['REQUEST_URI'], 'user') !== false &&  ! is_user_logged_in()) {
	wp_redirect("https://www.whateversite.com/" . LOGIN_PAGE_NAME);
	}
}

‘LOGIN_PAGE_NAME’ = whatever page name you use to login.
Change the word ‘user’ to your needs.

[Jakobuz]

Maybe you mean the buddypress profile page?
in that case this piece of code in the functions.php of your theme might help:

function sh_walled_garden()	{
	global $bp;
	if( bp_is_register_page() || bp_is_activation_page() )
	return;
	if( ! bp_is_blog_page() && ! is_user_logged_in() )
	bp_core_redirect( $bp->root_domain .'/'. 'LOGIN_PAGE_NAME' );
}
add_action( 'get_header', 'sh_walled_garden' );

‘LOGIN_PAGE_NAME’ = whatever page name you use to login

[Jakobuz]

edit: when a put all the codes for the custom capabilities in a plugin (so I remove it from the functions.php), I am finally able to change the custom capabilties (by changing them in this plugin).
Probably it’s because a plugin is loaded before the theme is loaded

[Jakobuz]

this solved the issue for me:
I blocked out all codes from the custom roles except for this one:

function add_role_caps_filter( $caps, $role )
{
    /* Only filter for roles we are interested in! */
    if( $role == 'bbp_professional' )
        $caps = custom_capabilities( $role );
 
    if( $role == 'bbp_member' )
        $caps = custom_capabilities( $role );
 
    return $caps;
}
add_filter( 'bbp_get_caps_for_role', 'add_role_caps_filter', 10, 2 );

and than I was able to assign capabilities to the new roles via the members plugin of Justin Tadlock.

I’m still wondering why this works for me … but mayby it works for you too … I hope

[Jakobuz]

Same problem here .. . all plugins except bbpress deactivated didn’t work out, also switching to twenty-twelve/twenty-fifteen didn’t work out …

[Jakobuz]

I’ve the same strange behavior on the forum I created, for the time being I removed these dates (because it looks very confusing), but it would be better if the date with the last reply was shown.

[Jakobuz]

Hai Robin, thanks for your answer and I must admit it helped:
I was too fast in my conclusion it was caused by bbpress, but it was an another (unimportant) plugin that caused the issue.
I feel relieved, thx 🙂