Thanks for the replies everyone!
We're getting quite a few reports of poor multi-core performance and I'm guessing this is because I disabled "Enable Multicore" on the convolution.
@Matt_SF that's quite interesting you experienced crashes before IPP was enabled. I have IPP enabled in the project and also built HISE with IPP enabled. What did you do to resolve this because it also sounds like my issue.
@Dan-Korneff what do you mean by "wrapping the entire DSP chain a fix_block container"? Is that something using ScriptNode?