This has been the case for a long time, and I can’t remember if I was ever able to use a Place I had created as the boundary in a traditional Project. However, I thought I’d check whether this is an intended limitation.
The screenshot shows a fresh attempt with a place I made months ago, whichis used successfully in many other projects. The actual Place I want to use at present is a new one, so I thought I’d use the old one here as it is well and truly in the system.
The full name of this tried-and-tested Place, copied from one of the Projects that uses it, is
Kaipatiki Creek Restoration site, Glenfield, Auckland, NZ