How do I post a photo?
The New Post page has a button labelled "Add Photos" that you can click to add photos when you are submitting new posts.
If you have problems adding a photo using the New post page, most groups allow links to photos in the details section of your post. So you can use a site like Flickr, Dropbox or Google Photos to upload your photos and then just include a link to those photos in your post details.
If your trying to add photos to an existing post, you can edit your post to add photos to it.
Where are the post photos?
Photos should always be linked to or shown with the post when you view a post on the site or in the app.
If a post mentions photos but none are visible and there is no link, the poster may have forgotten to attach the photos. In these cases, it's usually easiest to reply to the post and ask the poster to send you the photos.