Not the full content from post when viewed in piefed vs in OP's home instance

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:

:::

::: spoiler 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: