I just had the opposite happen.
First of all there were two updates yesterday and then today.
I have about 206 purchased songs, there are all in my library but only 25 are showing in the home purchased file.
In iTunes under purchase with (new) next to it in orange, under songs it lists all 206 songs as downloaded.
Under recent purchase it shows 50 songs.
I did not buy 50 songs at one time, I would say that it was over at least a two year period.
And yet in the home purchased file it lists 25, which are the last 25 I purchased.
I am 68 and have 1000's of records and CD's and rerecorded them and downloaded very few (206) over the years.
Since they are in my home library should I be concerned ?
Any reason why the store shows 50 and my home purchase shows 25 ?
Frankly I do not remember the last time I looked at my purchased file, so I cannot say when this happened.
I think I should also post this as new
Greg