What are these Guidelines in my Detail?

Rhino Rhino for Windows
1

what are these lines
what are these lines1392×664 29.9 KB

Hi,

I saw these dashed lines in some work I was doing and presume it must be a new feature. But couldn’t work out what it related to.

The lines only came up when I enter the detail.

2

Hi Jonathan - please run the SystemInfo command in Rhino and copy/paste the results here - this looks a bit like a plug-in, possibly.

-Pascal