MyBB Community Forums

I'm adding many threads to my forum each for a particular NES title for custom user creations.
In doing so multiple posts will have pictures displayed from attachments (since loading images locally is preferred).

But on many threads.. the first posts image attachment doesn't parse:
[attachment=26665]

While a post below has no issue:
[attachment=26666]


What could be the cause of this, and how could I go about fixing it? thank you.

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bUMP, Does this happen for anyone else?

Anyone else have parsing problems with image attachments?

Edit:
make sure that attachments can be downloaded by the users you want them to be in the forum in question and use the insert attachment button instead of wrapping the attachment link in an img code. That solved the problem for me.