Strange error "1"

When I open and save one of my files of house model, I’m getting this mysterious error. See image below. Any thoughts on what it might be? I first got the error in the 2015 version and have just upgraded to 2016, but the error persists.

Hopefully it’s not a countdown? :wink:

(Is there anything in the ruby window that gives more infos?)

You obviously have a Plugin loading that does this…
Question is… which one ?

Try using the SketchUcation Plugins-Manager to disable say half of the loading files and see if it goes away…
By halving what fails you can soon zoom in on the culprit…