Issue
When downloading Patch Content, new definitions are not downloaded.
If download updates is run manually the error: "Signature is not valid" and "Failed to download platform information" are seen.
Existing content is not affected.
Patches can be downloaded from vendors normally.
This only affects new or revised patch content definitions.
Cause
Currently the certificate used to sign content is being renewed. Expected turn around is 1 week.
Workaround
Go into "Download Updates"
Click tab "Content"
Uncheck "Verify definition signatures/hashes before downloading"