[B1] Editor: testdrive crashes after shadow calc

[TMarc]

I opened the editor to try if the bugs with new tunnel blocks were solved, so I made a nice track with the long tunnel entry block 7-1-1 at the border of the map. No start, no end. Using the "mountain view".
Then I calculated the shadows (fast), and wanted to drive, chose the testdrive ball and moved it at the entrance,
click to drive and crash.

This is reproducible.

If you do shadow calculation from downhill view and don't switch to normal upside view, the test drive crashes.

The testdrive works from downside view before the shadows are calculated.

Why can't I upload crashlogs anymore? No txt and no log extension are allowed

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