Measure shifts back and forth with each layout
In the attached score, any relayout operation anywhere in the score causes a measure on the second page to jump from the end of the second system to the beginning the third. The next relayout causes it jump back, and the next causes it to jump back again, and so on. We've seen layout shifts before, but I don't think we've seen behavior quite like this. Reproduced in 2.2-dev 68c1238 as well as 2.1 release.
Note that you may need to install the Old Standard TT font to load the score properly.