Due to a problem in the Intel® Quartus® Prime Pro edition software version 20.1 and 20.2, you may see this internal error during the fitter stage.This problem only occurs in designs targeting eSRAM Intel® Stratix® 10 FPGA IP.
Device Family: Intel® Stratix® 10 MX, Intel® Stratix® 10 TX
Intel Software: Quartus Prime Pro
Last Modified: October 07, 2020
Version Found: v20.1
Version Fixed: v20.3
Bug ID: 1508227182