App won’t open

DD won’t on I Pad mini 5 th gen. Tried deleting and reinstalling. Before this it was slow and non responsive. Any ideas?

This is a known issue right now. It showed up in v4.8.0 and continues through 4.9.0. Version 4.11.0 is now out, but there haven’t been many field reports left. I will be flying Monday and will report. Please follow these threads.