Sage,
Just before I released the final of TPC sugarloaf I thought that I had the same problem. I tried four or five times to plant forest and after not seeing anything I undid the plant forest. In one of my saner times I realised I had turned off display 2D objects. How stupid can I be

?
Unfortunately your and Glenn's problems are much more serious.
It is a crazy situation when we have different people using the "same'"(?) operating system getting different results, while using APCD and Links.
Luckily I have never had any problems with Windows 11, except for yesterday. I agreed to allow my laptop to update a download from Windows, not the main update to 24H2, and after that my laptop would not open after the login screen. Fortunately after a number of restarts an app seems to allow me to enter the computer and work normally. This morning it again took a number of restarts to get the laptop running. I have managed to save all my files to a new external SSD. I am now thinking about doing a new windows update. Anybody have any advice?
Sage and Glenn, I sincerely hope that you can correct your problem and return to producing all those stunning courses.
Good luck,
Ian