Still no luck on my end. Though I found this error in the logs:
Any idea why the update site has been shown to contain a virus?
Time: 2021-05-14T07:58:37Z
Interface Direction: inbound
Other: FDT_LIBCURL
Precise Error: unknown error
Source: MGMT IP
Source Port: 56840
Destination: 88.221.175.14
Destination Port: 80
IP Protocol: 6
Proxied Source IP: MGMT IP < But we don't use a proxy>
Content Type: tgz
Http Server: AkamaiNetStorage
Content Length: 452797041
Method: GET
Http Status: 200
Http Host: dl3.checkpoint.com
User Agent: FDT_LIBCURL
Suppressed Logs: 2
Sent Bytes: 0
Received Bytes: 0
Severity: Low
Last Update Time: 2021-05-14T08:15:05Z
Action: Prevent
Type: Log
Policy Name: Policy-Name
Policy Management: MGMT HostName
Blade: Anti-Virus
Origin: GW HostName
Service: TCP/80
Product Family: Threat
Interface: ethNumber
Description: 88.221.175.14 received a malicious file that was prevented
Reason: File exceeded size limit, File exceeded size limit
Resource: http://dl3.checkpoint.com/paid/b7/b7f5310bb5b1726113bce712fb859cc6/Check_Point_SmartConsole_R80_40_j..., http://dl3.checkpoint.com/paid/b7/b7f5310bb5b1726113bce712fb859cc6/Check_Point_SmartConsole_R80_40_j...
Bytes (sent\received): 0 B \ 0 B