Snow_Ball69 Almost definitely too late to save this one, so take it as a note for future playthroughs: the one detail missing from this guide is that if you just want to "add modules to a character mid-save", then you should uncheck all the boxes in "Import Character Data" window except for "
AAUnlimited data" (which is what governs module info, amongst other things). Keeping them all checked overwrites all the respective data on the "old" character in that save, biggest detriment of which is losing all the relationship progress on that character. Frankly, if you keep all those boxes checked when you import - you might as well just skip this whole process and add the updated card in-game as a new student.
Same process if you decide to remove modules mid-playthrough: follow that guide, uncheck all but the last box, then import.