Thank You for the great work.
I have problem that I isolated to be related with the mysterious vial component.
Dialog with Berrun Ghastkill after clearing mines and finding (2) mysterious vials is completely garbage (parts of some item description). This happens even if I do not have the vials in my inventory.
Also the dialog choice with Taerom Fuiruim after clearing Nashkel mines is bugged there is the extra dialog choice(item name) and rest of the dialog is again item description.
Steam version BGEE v18.104.22.168 (Siege of Dragospear installed)
(The dialogs are different if I instal Lure of sirines call before mysterious vial)
Quest rewards seem to be delivered normally
Now I directly ran to Branwen and Tranzig and again completely random dialog(fixed by removing Branwen and Tranzig) so i'm starting to think that the underlying Siege of the Dragonspear might affect the UB installation