@Lozion
Locking to a mix is a setting local to the app and simply prevents the user from switching the mix they’re controlling accidentally.
(It does not have any effect on the SQ, the mix being controlled or the assignments to groups/wheels)
SQ4You assigns channels based on their channel number – as there are a fixed number of input processing channels in the SQ (48) that are always available, the only way channels would (should) become unassigned is if you adjusted the mixer config to create stereo channels and then adjusted the config again to split those back to mono.
The switch to stereo would give you one stereo channel (rather than two mono), which is effectively controlled and addressed by the odd/left channel strip, so this is what’s shown and assigned.
Switching back to 2x mono, you wouldn’t get the even/R channel back as only the left channel would assigned.
Could this explain it?
If not, could you please provide more details on the setup (including network connection and devices used) and how/when the channel becomes unassigned?
Thanks,
Keith.