Due to a problem with the 'fast write' operations performed by the Quartus® Prime Pro Edition Programmer to a flash device, you may experience data corruption after a programming operation, or you may see an error in the 'Verify' step if it has been enabled.
To work around this problem, download and install the patch file for your operating system:
• Download Quartus® Prime 18.1 Pro Edition patch 0.09 for Windows (.exe)
• Download Quartus® Prime 18.1 Pro Edition patch 0.09 for Linux (.run)
• Download ReadMe file for the Quartus® Prime 18.1 Pro patch 0.09 (.txt)
The patch disables the 'fast write' operations for the Quartus® Prime Pro Edition software Programmer version 18.1, forcing the software to use the 'normal write' operation. A time increment is expected on programming operation to a flash device after the patch has been installed.