I’ve encountered a bug, I think, where in piefed it didn’t show the whole content of the post.
Here’s the view:
1. From OP's home instance:

2. From piefed:


P.S.: Piefed did show the full image very well. Good job there. The issue is all the other part of the post not showing.
Here’s the post:
I stepped through the code as the post was imported into the instance running on my dev machine, and saw no problems either.
Very strange!