@marijn I think this should be a priority. The progress page collapses into a single column at a pretty wide width, so this will affect quite a lot of users, particularly those using mobile devices. At the moment, when the progress page collapses into a single column the two columns are interlaced, but to sort correctly the second column should be moved entirely to the bottom.
2 Column view now:
1 6
2 7
3 8
4 9
5 10
One column view now:
1
6
2
7
3
8
4
9
5
10
Whereas one column view should be
1
2
3
4
5
6
7
8
9
10