Hi, sorry if this is not the properly way. I'm not sure if this is achievable to reproduce, but I think it's worth it:
https://youtu.be/W5-PmINdpIg
In a first moment I though it was a VSTi / Kontakt problem, but this works fine on Ableton, for example.
This "randomly issue" happens only on reaper - and you guys done a so much cooler software than others