Where does IDE save breakpoints and windows?

I have a project in text format.
When I open it, two windows open and when I start, I get two breakpoints.

I’d like to remove second window and breakpoints.
But closing window and clearing breakpoints doesn’t help here.

UIstate file

This is a known bug thats fixed for 2016r1
https://forum.xojo.com/29321-ide-opens-same-project-multiple-times

Thanks.