I noticed my HA pair Panorama's antivirus version was out of sync. So I logged into the out of sync device and manually tried updating the AV version but got the error;

Failed to update content with following message: sha256.c(48): OpenSSL internal error, assertion failed: Low level API call to digest SHA256 forbidden in FIPS mode!
Exiting with 255

Searching the intrawebs kept providing me solutions for ruby which did not apply to Palo Alto. So I deleted the AV version that I was experiencing installation problems with. Re-downloaded it and was able to install it without an error