Didnt move any files around or change anything. Went to load my save file and get ," Missing downloadable content elite crossbow set ." I am unable to load my saved game. I checked in the DLC content file and the crossbow set is in fact there. Not sure whats going on. Some help if possible. Thanks.

Same here.
Message appeared after I patched TW3 with GOG Galaxy, and installed alt Ciri look.

EDIT: I also downloaded and installed crossbow set, but it did not help.