BuddyPress.org

Could id be caused by a plugin incompatibility?

If you want to redirect all users(admin,subscriber,all roles) to homepage after login, just use this line at your theme functions.php file
add_filter( 'login_redirect', create_function( '$url,$query,$user', 'return home_url();' ), 30, 3 );

Or if you filter a bit, like Admin users will redirected to dashboard, and all others to home page, you can place this code instead of that

function wp_bp_custom_login_redirect( $redirect_to, $request, $user ) {
	global $user;
	if ( isset( $user->roles ) && is_array( $user->roles ) ) {
		if ( in_array( 'administrator', $user->roles ) ) {
			return $redirect_to;
		} else {
			return home_url();
		}
	} else {
		return $redirect_to;
	}
}

add_filter( 'login_redirect', 'wp_bp_custom_login_redirect', 30, 3 );