Unexpected print/debug statement in Macro, Glyphs Version 2.6.1 (1201)

Whenever I open or interact with a window of Glyphs, I get a bunch of the same output in the Macro window:

__self.controller None
__self.controller None
__self.controller None
__self.controller None
__self.controller None
__self.controller None
__self.controller None
__self.controller None
__self.controller None
__self.controller None
__self.controller None
__self.controller None
__self.controller None

It appears to perhaps be a print statement from a mouse-movement observer, because I get more lines of this as I move my mouse.

I haven’t experienced this before today, and the only relevant thing I’ve changed (to my knowledge) is my version of Glyphs.

That may have been a temporary debug print statement. I don’t see it in the beta Glyphs 2.6.1 (1203).

Yup, it seems to be gone, now!