This is very strange as the two scenes should be getting their morphs from completely different places - the Dixie.duf, if I understand correctly, is a DS 3 .daz file imported into DS 4.5 and saved as a scene - the .daz file, and so the .duf, should be getting the morphs from \Data\3_0\blMilWom-V4_######\modifiers (approximately, I can’t recall the exact folder name) while the V4 CR2 loaded into 4.5 directly and saved will ultimately point to the original \Runtime\Libraries\!DAZ\Victoria 4 folder with its .pz2 files, though it will be looking at an intermediary cached copy in the \Data folder first. Yet you seem to be getting warnings about missing pz2 files from the older scene, which shouldn’t have references to those, if I understand you correctly.
my english isn`t that good but as I understand what you have written you are right.
first: I have done a complete new ds4.5 v4 dixie in ds4.5 yet and saved it as scene, cleared the scene and load the new dixie version, everthing was fine
second: I have done another complete new v4 character with another character morph I have bought and saved it (seems it doesn`t matter what costum morph, it happens also with characters bought at ds mary for v4 for emaple)
after that I loaded the new ds4.5 dixie scene and…some morphs are missing and I have to inject morphs++ new. but I didn`t save the scene this time only cleared it for a test (point three)
third: i created two different v4 test characters without any custom morph and saved them, each loaded new work fine aaaaand surprise the former not working new ds4-5 dixie version I have loaded after the this little test without starting ds4.5 new or restard the pc, works also fine, without injecting the morphs new.
this is a very very strange error I think