> It might be that MapSource is much more restrictive when the tdb file
> says that the map is not from Garmin, e.g. it is not lockable or
> whatever MapSource might use to detect that.
This is the byte before "lowest map level", locked maps get value 1 there.
I think you could use mkgmap to create a TDB for a Garmin's map. This
could verify if TDB is relevant to the problem. I have already tested
that TDB created by gmaptool doesn't solve crashes.
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