[quote=@ChaiTea]
I've been trying to post pictures on replies/my bio but all that has been coming up is a small box at the corner of the post. I did what the cheatsheet said along with what others have said on another post, but it hasn't been working for me.. Is there any way to fix this?
[/quote]

It might depend on what you're linking. Some sites don't allow people to hotlink, and giphy links don't seem to work at all on RPG. The link could be broken too, or the image could've been deleted.

Perhaps try to upload the picture to Imgur or some other image uploading site.