Beachball or crash when opening a project from Most recently used projects menu

[Willeke]

Steps:

Create project 1 with 3 photos, projection Rectilinear and save.
Create project 2 with 2 photos, projection Rectilinear and save.
Choose project 1 from the Most recently used projects menu. The cursor changes to a watch and later a beach ball. After a while (45 sec) the project is opened.
Choose project 2 from the Most recently used projects menu.
Choose project 1 from the Most recently used projects menu. After a while Hugin crashes.

Hugin 2013.0.0
Mac OS X 10.6.8 and OS X 10.9.0

I did remove hugin Preferences.

[tmodes (tmodes)]

Please test 2016.2 version and report back if it is fixed.

[Willeke (willeke2007)]

Hugin 2016 requires OS X 10.11. I'm on OS X 10.10 and can't test.
I can't reproduce this bug in Hugin 2014 on OS X 10.10.