I did get OceanProject-Master to run on 4.23, I just had to right click on the project file Generate Visual Studio Files and change version to 4.23, it will take a long time to open the first time and sit at 45% for many minutes (20) but after it finishes all the shaders it worked fine.
I am using VS17, Windows 7, 7 year old processor 3770K, with 32GIGS of ddr3 memory, and a 1080GTX << If you have better hardware you should a shorter time to get the editor open the first time.
Note: The last time I was using this around 4.17 I went through and cleaned out all the content except the flag waving and the Ocean content to reduce the size and also removed the Time of Day as I didn’t need any of it.
Once you open the project you will have 3GIGS of space being used. The .zip is 922MB.
If you guys have interest I will create a new branch with everything removed except the Ocean if not I will do it again for myself. Please let me know!