Btw, to clarify what I meant by Reaper working in certain use-cases VEP won’t, I’m talking specifically about sync / PDC issues that arise when using VEP’s “audio insert” for FX.
VSTis work fine. It’s only FX via the “audio insert” feature of VEP that is the issue.
Basically, you can only do very simple asynchronous things like reverb. Or other things, but in a very simple project that also happens to have its other plugin’s PDCs not expose the issue.
In other words, a simple “hello world” project will usually not expose the issue, but a real-world project will.
The problem is the result of VEP not returning the audio on the other side of its insert, but elsewhere via its remote. It prevents the host from doing its PDC thing. VSL is aware of the limitation and has promised either an update, or a separate “FX Rack” oriented product.
If anyone wants more info, I’ll dig up the long thread on it and post it here.
Here’s the TL;DR saga.