constant crashing in reaper on playback.

[Vexer452]

So I have no idea how to solve this issue. I was working on a simple brass orchestration using kontakt instruments. The only plug-in I have running in the project is my seventh heaven reverb and only one instance of it. The issue is as follows, I playback my orchestration a few times, and after the 20th playback or so reaper just stutters, freezes, and instantly crashes without any dialog box appearing after the crash. It seems to only happen if I move a kontatk instance window around if i just leave it on a repeat playback it doesnt happen but the second I move around or fiddle with a kontakt instance it crashes almost right away. This as of the past 3 days in constant. Every single project I’m working on crashes after 20-30 playbacks without warning. It’s worth mentioning that my hardware is not even coming close to reaching its maximum usage. Ram is only at maybe 17gigs is use out of 32. Cpu is at 4-15 percent usage, and ssds are 0-2% at any given time.

Computer specs:

Ram 32gb

Processor ryzen 5 3600

Samples on an ssd

And reaper is installed in a separate ssd


Faulting application name: reaper.exe, version: 6.2.6.0, time stamp: 0x60620bf0
Faulting module name: Kontakt.dll, version: 6.6.1.139, time stamp: 0x612f7035
Exception code: 0xc0000005
Fault offset: 0x00000000007d562f
Faulting process id: 0x1e14
Faulting application start time: 0x01d7afd645ffc8e0
Faulting application path: C:\Program Files\REAPER (x64)\reaper.exe
Faulting module path: E:\Native Instruments\VSTPlugins 64 bit\Kontakt.dll
Report Id: 0acca3a9-18d7-4f69-857d-c2702ab6422d
Faulting package full name:

this is what was found in the eventviewer

[sockmonkey72]

Originally Posted by Vexer452

Faulting application name: reaper.exe, version: 6.2.6.0, time stamp: 0x60620bf0
Faulting module name: Kontakt.dll, version: 6.6.1.139, time stamp: 0x612f7035
Exception code: 0xc0000005
Fault offset: 0x00000000007d562f
Faulting process id: 0x1e14
Faulting application start time: 0x01d7afd645ffc8e0
Faulting application path: C:\Program Files\REAPER (x64)\reaper.exe
Faulting module path: E:\Native Instruments\VSTPlugins 64 bit\Kontakt.dll
Report Id: 0acca3a9-18d7-4f69-857d-c2702ab6422d

This crash appears to be in Kontakt. You might try reproducing the crash running the same Kontakt instrument in a different DAW (or in the Kontakt standalone). Did the crashing start when you updated to Kontakt 6.6.1?

[Vexer452]

I’ve reproduced the crash now several times and it almost always happens like this: I run the playback of all the instruments playing and I leave it on repeat. I come back after 30 mins still repeating no crashes only when I move or open a kontakt window and start to mess with any settings within any of the instruments does my reaper stutter then freeze and crash. I did do the kontakt update recently and I never noticed any crashes before that update. Is there a way to rollback my update?