Description
Due to a problem in the Intel® Quartus® Prime Pro Edition software versions 18.1, you may see the newly generated revision .qsf (Quartus Setting File) file may be empty apart from the qdb (Quartus Data Base) file. This problem occus when creating PR_Impl revision for Intel® Stratix® 10 GX device based on the PR_Base revision.
The problem is not consistent and may occur only once during multiple attempts.
Resolution
This problem has been fixed beginning with the Intel® Quartus® Prime Pro Edition software version 18.1 Update 1.