Sometimes when the patch is done, a database repair runs. There maybe a ton of defective items now when you look in Content Manager.
First of all, don't panic! All you need to do is highlight the so-called errored asset, and view errors and warnings by right-clicking and choosing this from the contextual menu.
The majority of the errors will disappear this way. If there are any left afterwards, open them for edit and commit them. This should remove these more stubborn ones.
Now if there are anymore defective items listed, these are definitely defective and they are usually easy to fix.
John