I imported a few OpenText queries without problem and they gave similar/same results as in L3 (allowing for changes to words in L4). But L4 crashed trying to import the following Hebrew query:-
2656.Hebrew Idioms.zip
2656.Logos4ImportSyntaxCrash.zip
EDIT: After constructing the Hebrew Idioms query in L4 it worked OK. Other Hebrew queries imported & worked fine.