ID:17979 "<Region target>" is constrained to the <placement/routing> region <Region bounding box(es)>, which is not fully contained by the region of its parent instance "<Parent region target>" <Parent region bounding box(es)>. As a result, design instance "<Region target>" will be constrained to the intersection of these regions <Updated region bounding box(es)>. Expand or move the bounds of the region or its parent region so that the regions overlap.

CAUSE: In your design, the specified regions both apply to the logic, effectively constraining the logic to the intersection of the two regions. Because the region is not fully contained in its parent region, the effective region is reduced in size.

ACTION: No action is required because the Quartus Prime software automatically applies the intersection of each region if multiple regions apply to the same member.