XF 1.4 Entire thread's content goes missing

[okhello]

A user pointed out this thread: http://urlgone.com/75b11d/
Hundreds of posts in the thread, but nothing displaying. I'm not sure whether any other threads are affected, this is the only one I can find that has this issue.

We're on 1.4.6. The only change we've made recently is updating from php 5.3 to php 5.6.10, but I have no idea when this problem first occurred.

 

[Paul B]

All of the threads I checked have no content.

Disable all add-ons and test in a completely default unedited style.

 

[Paul B]

As a follow up, was this an import done by a third party?

https://xenforo.com/community/threa...or-millon-posts-migrations.77997/#post-934891

If so, you would need to contact them for support as it suggests there were issues/corruption with the import.

 

[okhello]

All add-ons disabled, checked from the default unedited style. Doesn't seem to have changed anything.