I recently installed Delphi Tokyo 10.

I recently installed Delphi Tokyo 10.2.1 Ent. Ed. into a VirtualBox VM with Windows 7. I'm playing around with a fairly simple project, and when I compile it I'm getting the red dots on the left of the line numbers on the wrong lines in the main form unit. They all appear to be shifted down by one. It makes it hard to debug, to say the least.

Any idea what the problem might be or how to fix it?