Due to a problem in Intel® Quartus® Prime Pro software release version 18.0, Stratix® 10 Serial Flash Mailbox Client Intel® FPGA IP Core is not able to access flash memory when OSC_CLK_1 is selected as the configuration clock source for Intel Stratix® 10 devices.
Device Family: Intel® Stratix® 10
Intel Software: Quartus Prime Pro
Last Modified: November 07, 2018
Version Found: v18.0
Bug ID: FB: 600990;