I have an outdoor GARMIN GPS MAP64st.
I tested the device in the last weeks several times. It concers point: N 50°48.117’ E 003°17.557’
Conclusion: if only the ‘RECREATION MAP OF EUROPE V4 ‘ (not comfortable ; nort detailled) is on, there is no problem.
If the card ‘OSM GENERIC ROUTABLE’ is on, the device always is shutting down by passing the point mentionned twice.
The OSM cards are on a SD card that I already formatted, hoping the problem could be solved.