title: Package rgl in R not loading in Mac OS
body: <p>I installed the rgl package (0.104.16) in R (3.6.3), but it does not load. I don't get any errors. It just never ends loading. I tried reinstalling R and RStudio and also Xquartz. Nothing is working. I have Mac OS Catalina version 10.15.7.
  Any help would be highly appreciated!
  Cheers</p>