Apologies for the delay in response - I'm running a thread rebuild in the back end in hopes that this will restore those missing threads/posts.
This can sometimes be a lengthy process (up to hours) so I will check in later when that is complete to let you guys know and for you to clear your cache/cookies then refresh to see that everything is back.
If your post/thread is still missing, please let us know the title of it if you remember, the post/thread content and which forum/section you had posted it in. It may also be useful if you remember the day/time you had posted it - at least a rough estimate.
I've responded in the other thread as well. Thank you for your patience and understanding on this.