When using a image in a thread that is fetch to portal, the portal in then when using align (left, center or right) showing [align-center] (if center where used) before the image.
The Image self is not align in portal as chosen in thread.
I'm not sure what you mean. Can you give me an example how you include the image in your post?
SInce we don't cut off announcement text in portal, I'm quite sure he uses a buggy plugin, which stops the text in the middle of an opened [align] MyCode, to achieve it. So not a MyBB issue.
No idea what else could be wrong if that's not the case here. If someone has more info, please provide it.
EDIT: rejecting since I can't find anything in the core that would cause it.