Solved [SOLVED] SOMETHING breaks Kunena attachment loader?

I have K5.011 running fine on Joomla 3.75

But when I clone the installation and try upgrading it to Joomla 3.8.2 ( on DEV server) everything "appears" perfectly fine, but when testing Kunena I cannot attach files in any posting. They seem to UPLOAD OK ( I can see them in the TMP folder) but aside from seeing the thumbnail(s) at the bottom of the post, there is no way to attach them, nor to insert them into post as IMG. There is an INSERT ALL button but it doesn't do anything. No longer an "INSERT" button for each image...

Any hints??? see pics below

This is after upgrade to Joomla 3.8.2:


this is Joomla 3.7.5:

Kunena Version 5.0.11 (PHP7.1)

Works fine in Joomla 3.7.5 - but stopped working after Joomla 3.8.2 upgrade.

Attachment uploads, thumbnail is present, but the (INSERT) button is gone!

see pics in this thread www.kunena.org/forum/installation-issues...na-attachment-loader

PS: just rolled back to K 2.7.5 and discovered that my DEV server will not do attachments there, either. Very strange! (it does currently work on the live server, and this is a CLONE)

Permissions issue? What could be hiding that INSERT button (etc). Files are not showing as attachments below post, either. So they are physically uploading (VERIFIED!) , but something is frustrating the "attach" code...

discovered it's the same issue when I roll back DEV server to joomla 3.7.5 (oops!)

VERY strange, the DEV server is cloned from live server, yet it works on LIVE server but not on Dev server.

Working ( live server)



and...
NOT working ( dev server)


Both servers running same PHP7.1u (latest)

(it does currently work on the live server, and this is a CLONE)

If you clone a page, it's cloned also the cache. Then it is possible, that the forum to want retrieve some things from the wrong address. Empty all caches and try again.

Caches are empty.... this is a strange one!

And I just noticed, If I add a couple of image attachments ( thumbnails are visible, but no INSERT buttons) and then use the REMOVE ALL button, it does not remove the attachment thumbnails - but rather it removes the REMOVE ALL button. In any case, thumbnails or not, no attachments show up in the message when it is posted

I'm going to restore our DEV installation from a fresh copy of (working!) live server and check again...