Solution:
Please use the old version IP. We have tested it with the following IPs: RX v1.3 and TX v1.2. The design seems functional based on the first tests.
At the time it was developed sometime in 2019, using Hard D-PHY RX might cause simulation issues. The latest version seems to be good for Hard D-PHY but our factory had not updated the reference design.
Since the reference design had been working on the old IP RX v1.3 and TX v1.2, we would recommend using default version as it functional and tested in hardware.