do you mean the value of the description? I'm not familiar with cloud but when it works same as server, you might check the description-text under 'Custom fields"-option and under the 'field configuration'-option, which is particular for one or more projects. Maybe there is the old value and you have to change it at this position, too.
You must be a registered user to add a comment. If you've already registered, sign in. Otherwise, register and sign in.