[psyZa2]

@Eagle Eyes:

Same for me, PM restrictions didn't work in 4.1.10. Here's my fix:

Edit the plugin "VSa - APBOUPC - 35 (PI)". In the last few lines, replace $recipient with $recipient['username']

if (trim($recipient['username']) == '')
{
  continue;
}
if (!in_array(trim($recipient['username']), $apboupc_allowedrec))
{...