It's a Play (starting with version 5) bug with the way they do streaming, it really doesn't work at all and will cause the release tails of notes to not be played. The only way to work around it is to always use a SSD drive for samples, if possible set the settings for sample cache (on some computers you won't be able to see any controls, another bug they have acknowledged but haven't fixed for at least a year maybe two), toggle the option to stream from disc to off (check box in the hamburger menu) so it loads everything, and never use fast bounce for render always use the slower render methods. Sadly none of these work 100% of the time. The best solution is to switch to another sampler/library that doesn't use Play.
Matthew Sorrels's post in Pop and Crackle with new ASIO interface, latency apparently not the problem? was marked as the answer