[CLOSED] OpenCPN 5.8.2 won't start properly

[Didier B]

Using OP2.9, I updated OpenCPN to 5.8.0, but this version crashes before having started properly : it opens a window, displays the chart, the left side icons bar, and closes the window immediately, before displaying the the right side lower icon horizontal bar 

RPi 4 2GB, 7" raspberry DSI display.
I had to fold back to a previously saved image to get 5.6.2 back to life