Internal Error: Sub-system: VRFX2, File: /quartus/synth/vrfx2/vrfx2_xmr.cpp, Line: 1211

Description

Due to a problem in the Intel® Quartus® Prime Pro Edition Software version 21.3 and earlier, you may see this error during synthesis.

Resolution

This problem is fixed beginning with Intel® Quartus® Prime Pro Edition Software version 21.4.