Can't publish Flash update 32.0.0.330 in SCCM

When I attempt to publish the Adobe Flash Player 32-bit/64-bit Plugin 32.0.0.330 update in SCCM I receive the following errors in the MSM_ISVUPDATES_SYNCAGENT log:

SyncUpdate: WebException status : 'UnknownError SMS_ISVUPDATES_SYNCAGENT 2/24/2020 9:35:56 AM 21292 (0x532C)
SyncUpdate: f815ec25-6d4f-4307-b88e-97b183d76189 - Download of update f815ec25-6d4f-4307-b88e-97b183d76189 failed, unable to continue SMS_ISVUPDATES_SYNCAGENT 2/24/2020 9:35:56 AM 21292 (0x532C)
STATMSG: (SRVMSG_SMS_ISVUPDATES_SYNCAGENT_UPDATECONTENT_DOWNLOAD_FAIL). SMS_ISVUPDATES_SYNCAGENT 2/24/2020 9:35:56 AM 21292 (0x532C)
STATMSG: (SRVMSG_SMS_ISVUPDATES_SYNCAGENT_UPDATECONTENT_FAIL). SMS_ISVUPDATES_SYNCAGENT 2/24/2020 9:35:56 AM 21292 (0x532C)

Also, when I attempt to resync the Flash Player catalog I get the following warings in the same log:

SyncUpdateCatalog: **** Warning: Catalog is old format, no content certificates are included and updates will not be deployable until certificates are trusted. **** SMS_ISVUPDATES_SYNCAGENT 2/24/2020 9:25:54 AM 20668 (0x50BC)
STATMSG: (SRVMSG_SMS_ISVUPDATES_SYNCAGENT_CATALOG_V1_WARN). SMS_ISVUPDATES_SYNCAGENT 2/24/2020 9:25:54 AM 20668 (0x50BC)

I've already tried deleting the catalog and starting from scratch, and the did not help.