OK, I did the same start a few times now, and twice I have CTD'd just after going around the upper "ear" of Spain. I did an SH Validator run on the mod, and it shows this:
Classes errors:
1. F:\Games\SH49D2\data\Air\ASW_RNTBF\ASW_RNTBF.eqp does not contain sequentially
ordered entries (found duplicate [Equipment 6]) @ line number 24
2. F:\Games\SH49D2\data\Sea\Float_Plane_H6K\Float_Pla ne_H6K.eqp doesn't exist!
3. F:\Games\SH49D2\data\Sea\NBB_Nagato\NBB_Nagato.eqp does not contain sequentially
ordered entries (found duplicate [Equipment 48]) @ line number 289
4. F:\Games\SH49D2\data\Sea\NCA_London\NCA_London.eqp does not contain sequentially
ordered entries (found duplicate [Equipment 42]) @ line number 253
5. F:\Games\SH49D2\data\Sea\NDD_Clemson\NDD_Clemson.e qp does not contain sequentially
ordered entries (found duplicate [Equipment 20]) @ line number 127
6. F:\Games\SH49D2\data\Sea\NKSQ_\NKSQ_.eqp doesn't exist!
7. F:\Games\SH49D2\data\Sea\NOM_Paula\NOM_Paula.eqp doesn't exist!
Since I crashed in just about the same exact location two times in a row, I suspect a "bad" vessel (air or sea). I didn't dig very deep into what can be encountered there just Northwest of the Spanish coast, but some of the Lant_Single_Merchants and the Lant_Convoys RGG go by there. I didn't check too many other layers.