After investigation it become clear that the app not collapse in all tunnels, depend losing the sattelite or not.
app maybe collapse depending what you have in sys!
Navi use by default this:
[navigation]
use_duration_for_tunnel=0
stop_at_tunnel_end=1

[strapon]
discard_state_timeout_in_tunnels=-1
discard_state_max_distance_in_tunnels=10000

Anything else don't regogineze , so that may cause crash to you!

PS. Crash in tunnel not depend to size of tunnel.