R-tile CXL base hard IP example for the Agilex 7 M-series Dev Kit (DK_DEV_AGM039EA) does not work

We recently generated an R-tile CXL base hard IP example for the Agilex 7 M-series Dev Kit (DK DEV AGM039EA) with both Quartus Prime Pro 25.3.1 and 26.1. However, the CXL link is always down and stuc...