Guys I'm gonna tell you again, you gotta make up your mind if you want smilies or spell check. They WILL NOT work together. You gotta chose.
I've had a few instances where the page to tell me a PM and a post both were made failed to appear, instead I got a can't be displayed message. But so far every time the PM went and the post was made. No errors in that regard.
I do know that there is some time limit on making a post or sending a PM once you start. I don't know what that time is but there is one. I started one and then went to eat supper and came back and it refused to post it first try but let me tell it to do so again and it posted. Message was it had timed out on me. I didn't lose anything tho as I had stayed logged in.
From time to time when making a post (NOT a PM) you'll hit POST and rather than posting it will give you a message that another post has been made while you were typing. If you don't wait and see it but just "assume" the post was made and move on to something else you will lose that post. But if you way to read the message and it tells you another was made and that you might want to reconsider yours you can add more to it or change it or just tell it to POST and it will. These are quirks of this software.