What is going on with this app?

I've hardly used it over the last few months, but this whole community section is so off now. Like when typing a post, auto correct doesn't work, you can't space down to make a new paragraph, can't use emojis. I'll click on the community tab, go to my groups, click a group, and then click a post to read it. When I click back out of the post, instead of taking me back to all the posts within that group, it takes me back to my groups list. It's so frustrating and so hard to use now. Is everyone having these issues, or is it just me? I've already updated the app and that didn't fix anything.