I have a problem with Kontakt 5 in reaper. I use it with East West gold library to play midi files. It sounds fine, but it delays a bit, so it sounds quite wrong in a mix..
Sometimes with midi files you have to manually scoot them forward a little bit to compensate for the delay. I think there might be some option in Reaper to take care of that for you but I don't know what it is.
Considering you literally told about this plugin in a thread the other day, I'm going to ask a simple question, please don't be offended but this happens quite a lot.

You did actually pay for it didn't you?
All I want is for everyone to go to hell...
...It's the last place I was seen before I lost myself

Quote by DisarmGoliath
You can be the deputy llamma of the recordings forum!