The earliest recollection of this bug is traced back to PAN-OS 10.1.9 - July 29, 2024.
This bug is fixed in PAN-OS versions 10.2.4, 10.1.9, 9.1.16.
Fixed an issue with Content and Threat Detection allocation storage space where performing a commit failed with a CUSTOM_UPDATE_BLOCK error message.
For more information:
https://docs.paloaltonetworks.com/pan-os/10-1/pan-os-release-notes/pan-os-10-1-9-known-and-addressed-issues/pan-os-10-1-9-addressed-issues
https://docs.paloaltonetworks.com/pan-os/10-2/pan-os-release-notes/pan-os-10-2-4-known-and-addressed-issues/pan-os-10-2-4-addressed-issues
https://docs.paloaltonetworks.com/pan-os/9-1/pan-os-release-notes/pan-os-9-1-addressed-issues/pan-os-9-1-16-addressed-issues