I have never had a problem with this before, and in fact I have been able to add to the end of this title but not to correct the spelling or insert a missing word.
Why it came up like this in the first place i have no clue as I am careful to check before posting the auction. There are no bids on the auction, so why won't it let me insert the missing word but has allowed me to put 2 new words at the end of the title? Auction number is 59905199