[Therion] Multiple scrap outlines

I've just run one of my old thconfig files with 5.3.6 to produce a .lox file, and noticed a couple of new errors/warnings (or at least I've not noticed them before) as below. D:\Program Files\Therion\therion.exe: warning -- MiddleEarthCPtoKangaDPlan_s5@MiddleEarth.GLMESM_system -- invalid scrap outline ....... D:\Program Files\Therion\therion.exe: warning -- GreenlinkFPlan_s1@MiddleEarth.GLMESM_system -- multiple scrap outer outlines not supported yet ....... These warnings don't seem to cause any obvious problems (although I have some issues with kml passage outlines for which I've yet to track the cause). Are these the results of new error traps? Something I should be doing different? Bruce