For everybody having problems with scripts AFTER using Script Merger such as: "Could not find function 'GetChosenMainMenuType'"
https://www.nexusmods.com/witcher3/mods/1964/?tab=description Using Version 3 solved the problem for me. Give it a try! However, you may encounter problems with some scripts not working properly (especially when you merge scripts for other mods) so be careful and try to merge the scripts manually.
Thanks to Mikanoshi and Sobieski1 for mentioning the solution!
EDIT: Actually, after careful merging the mods, the game launches without this fix. Now I am testing if all the features actually work. I would recommend reviewing script conflicts manually and maybe it will work for you.
Solution to script errors (1 comment)
"Could not find function 'GetChosenMainMenuType'"
https://www.nexusmods.com/witcher3/mods/1964/?tab=description
Using Version 3 solved the problem for me. Give it a try!
However, you may encounter problems with some scripts not working properly (especially when you merge scripts for other mods) so be careful and try to merge the scripts manually.
Thanks to Mikanoshi and Sobieski1 for mentioning the solution!
EDIT: Actually, after careful merging the mods, the game launches without this fix. Now I am testing if all the features actually work. I would recommend reviewing script conflicts manually and maybe it will work for you.