I posted a similar issue and received this response:
Unfortunately, that's a newly-discovered software bug....
(at least I happened upon it for the first time yesterday from another user's post..& tested to see it's happening in both the "Online" software, and the "desktop" software)
If you enter some 'item" donations....then delete some charity you are not using this year, then ALL "item" donations disappear.
The only Workaround I can see, is to make sure you delete all charities you aren't using this year, then enter your "items" .
