I had a lot of issues with them in 12 also, you are not alone!! The only thing I found that helped was resetting preferences... Edit>Preferences>General then select reset on next launch... It restores everything to default but it often gets rid of little problems too! I went through a stage of doing this but it seems ok now and I haven't had to redo in a while... From memory there may have been a PSE update... Perhaps 13 needs an update for bug fixes??
Keep trying, eventually those much loved scripts will work... And I believe scripts are terribly hard and complex to write... Nothing else like them anywhere and believe me I have looked!!
Let us know how you went?