It can be frustrating enough just trying to get Links to run at times. I can only imagine how much more frustrating it is when trying to develop courses.
I have played a couple of rounds of the latest beta on Windows and Linux.
No problems playing on either, Windows is where I am seeing some courses crash, but am not seeing any problems like that here.
I have not seen any issues, nothing is jumping out at me. The rough looks like deep grass, but well looked after, and it plays accordingly. I also like the look of the divots on the tees.