I have completed the Dawnguard questline and the first "Ancient Technology" quest for Sorine Jurard. However, the option to turn the quest in doesn't go away once I've completed it, Sorine doesn't reward me with an enchanted weapon or jewelry as usual like Florentius or Gunmar, and the dialogue option "What can I do to help?" isn't present to progress the crossbow project. I've tried uninstalling the USSEP from my load order, removing additional mods from my load order, fast traveling away and waiting for 10 days to see if the quest target location resets, and afterwards, trying the quest over again, and none of these potential fixes are working. So frustrating!