Further to previous post re Notion crashes

Hmm... I just tried using Kontakt as a VST instead of Notion's inbuilt piano and it works perfectly with very low latency and no timing glitches. So the problem has to be with Notion's own sound engine, by the looks of it. Since I have a zillion VSTs, I guess I can use these instead of Notion's sounds but they will need to be manually set up, I suppose. I'll pass this onto Notion support and see what they suggest.