Version 6.0.3 was released today which has some minor fixes but I don't think there was anything in there that would address what you are describing. Did you recently upgrade iOS by any chance? I am seeing you are currently using 18.6.2.
We will look into the Lock Screen issue. That and the crashing may be related.
Have you tried any other iOS devices?
Do you have any guide lines or KMLs being displayed at the time?
Is this from a freshly designed or a saved mission?

