Choral sound issue

The choral sounds from Musesounds sound pretty good. However, there is an issue with the tenor and bass sounds: they give an accentuation at the end of the note, unless another note follows immediately. It is present on all dynamics and worse with some pitches than others. It is bad enough to stop me using it. It is also present to a lesser extent in the soprano and alto sounds. I dont know whether it is in my setup or whether it is inherent (possibly the release part of the envelope??) I can see no other reference to this on this forum, but is this a known thing? Is there a workaround?