I went out today to check on a couple of roads on a new route. I started from home and told MRA to take me to at WP# 5 rather than the start of the route. Once on the route the app decided to skip WP5 several kms before I got there. It then decided to skip WP6 about 8 kms before I got to it. I told it to revert to WP6. As far as I know no other WPs were skipped.
I noticed a few times when a voice prompt was missed or cut short. I'm wondering if it's caused by a conflict in the phone from other app alerts overriding the Nav instructions.