This disappering post problem has been around for ages. I 'think' it has more to do with your browser's cache than Mudcat. After having it happen to me a couple of times, I have just adopted the habit of checking after I post...then, if it didn't 'take', I use my *back* button to return to what I typed. It should still be there....until you close your browser. Then I copy it, return to the main page and ***RELOAD*** Mudcat. Note..NOT 'refresh'. Reload puts a new copy of the Mudcat forum in the browser's cache, whereas 'refresh' may only get an older copy. Then I return to the thread, paste in my post, and submit again. All this takes only about 5 seconds.

I frankly do not know the technical details of everything that is happening, or why at a certain point Mudcat & your browser don't listen to each other...but it does work to do the 'reload' bit.

Yes, it does also work to do composing in WORD or some other program, but I never remember.