When Studio One is in Low Latency Monitoring mode, parameter changes are not passed to Helix Native v1.90+ until LLM is disabled.
Firstly, Helix Native is stable and functions normally in Studio One as well as any other VST3/ AU host.
Studio One’s Low Latency Monitoring mode is different in that it keeps a plugin’s processing active, while Low Latency mode in other DAWs such as Logic and Pro Tools bypass plugins that incur latency above a certain threshold.
This mode is only used during tracking, and while edits made to Helix Native in this state don’t take effect, Helix Native does process audio and allows tracking with low latency.
If Helix Native parameter changes are desired, toggle the low latency monitoring option.