In this post, there’s mention of a noise issue with the reverb. I have found the same. Is there any plan to fix this as is hinted at in that comment?
This is a screenshot of two tracks with similar preset, while stopped:
When I move away from Reaper (e.g. typing into this box) and switch back, the noise is down to 0 again.
Using a spectrum analyser of sorts, it would appear that the noise happens above 5k which is right at the top end of what I can hear apparently, but it’s enough to cause the meters to clip when pushing the vol sliders up.