5.9.0-0+1f4843f and WR : Crash when shuting down Opencpn

[Gilletarom]

Describe the bug With Windows 10, OpenCPN 5.9.0-0+1f4843f and previous alpha version of OpenCPN, crash

To Reproduce Steps to reproduce the behavior:

1. Run OpenCPN :
2. Note that the initial screen has a black area before displaying normally while maintaining a black area for the entire area of the map that is not mapped. But this doesn't seem to be a problem. see sceen shot
3. Run Grib
4. Using Grib file : Plymouth_4km_WRF_WAM_240503-12.grb.bz2
5. Run WR
6. Select some weather research
7. Updating route search settings
8. Launch of research. Normal operation of weather-route searches by WR
9. Using red-cross of OpenCPN for try to shutdown OpenCPN, before the end of the current search and without closing WR with red-cross

Then crash.

Screenshots