[MikeTrin]

I don't know about most of you but I couldn't figure out how to make this fix. Here's what you do.

From the admincp go to Plugins & Products, open up the Plugin Manager.

Scroll down and find the Product PM Attachments

Click on: private attachments - get posthash and allow attachments

do what it says to do in line 1

Originally Posted by Stoebi

Here is the fix (official update comes later):
Plugin -> private attachments - initialize pm attachments if needed (Hook global_start)

Change Line 1

if (THIS_SCRIPT == 'newattachment' AND $_REQUEST['type'] == 'pm')

to

if (THIS_SCRIPT == 'newattachment' AND $_REQUEST['type'] == 'pm' AND !$threadid)

Regards, Stoebi