A: Yes, but only within the same major version. For example, v2.3.x can roll back to v2.2.x, but not to v1.x. Downgrading requires a bootloader unlock code from support.
The database server hosting the patch file is experiencing high traffic or latency. jufe445 upd
Cross-reference the timestamp of the update with your system's scheduled maintenance logs. Step 2: Sandbox Testing A: Yes, but only within the same major version