Actually, I can edit it but only with the full edit. I can't save changes using quick edit.I don't understand what you mean by this?
Let's say for example a person writes a post, they post their post, and then they notice later that they accidentally misspell a word. What they can then do is go to the upper right portion of their post and click where it says "Modify" and then you'll be taken to a screen where you can edit your post. Once you've made the appropriate edits/changes, then click "Save" at the bottom, and then you'll be taken back to the thread where your changed post is.
Once you've made a edit/change in your post, you'll see at the bottom of your post where it'll say "Last edit today at ......... by ........"
What don't you understand about it? I'm saying it only saves my changes if I modify my post using the Modify button above one's post. If I try to edit it using the quick edit button which is located below one's post, it will not save my changes.
And why are you describing to me how to modify posts? I know how to do it, I just found a bug that doesn't allow me to save my changes if I use the quick edit button.