I wasted many hours with attempts to solve CTDs with P3Dv5 and v5.2 on customer's machine. And found workaround. You need rename OLC_EU_REG_L_French.bgl file in the folder Orbx\p3dv5\Global openLC Europe\Orbx\FTX_OLC\OLC_EU4\Scenery to OLC_EU_REG_L_French.bgl.off and CTDs are gone. No matter what scenery You use - Aerosoft, FSDT, default or any freeware. LUSA2R and other STARs are again flyable. I tried open that file with tmfviewer, file looks OK. If tthis file is active, all attempts for ILS approach for rwy 22 ended with CTD. With renamed, all is OK. IMHO in this file is some strange problem...