I'm getting an error message 'please select username' whenever I try to post on a thread. If it's my first post, the username field is editable and if I add and delete a character, it will accept it and let me post. For subsequent posts, the username field is obviously greyed out as you can't change name mid-thread, but I am still getting the same error message only as I can't 'pretend' to edit the username it won't let me post. This means I can't reply at all once I have posted on a thread (and same will be true for this thread).
I have tried - clearing cookies; changing my username (twice).
I am using desktop on Safari
I've attached a couple of screenshots to show the error.
Please can you help as this is really frustrating, it means I can't reply to anyone who has engaged with my previous posts and I look like an arch 'thread plopper'!!