RustySpoon, as you and I have talked about before, we both have computers with more than enough horsepower to address 6, or more, RT plus midi plus VSTi's.

Like you, I have run into this problem before when I max out RT's. Strangely, what seems to fix it for me is to hit "return to factory settings (excluding resetting midi drivers and my patch maps). Other than resetting a few of my personal preferences, like which folder to open and a few other personal tweaks, nothing seems to change in the settings from where it was. But the problem goes away.

The only thing I can figure is that the return to factory settings seems to reset some underlying things in the program that the user has no access or visibility to.

Give it a try and see what happens.

Jeff

Win11, Intel i7 7700K 4.2Ghz, 32Gb RAM, 2x1Tb HD, 500Gb NVMe, BIAB/RB 2025, MOTU 828MK3 audio, MOTU Midi Express, Yamaha Montage 7, DX7II, TX802, Motif XS Rack, Roland Fantom XR Rack, Oberheim Matrix 1000, VoiceLive3 Extreme, Kontakt 6, SampleTank 4.3