Frozen creatures don't produce quanta, only delayed creatures produce quanta.
I've tested in the trainer. But Devourers don't devour quanta, if they're delayed either either they're frozen. But I don't know for sure, if this can be bug. You can't activated the quanta producing creatures (
![Fire :fire](https://elementscommunity.org/forum/Smileys/solosmileys/../../../images/Misc/fire18x18.png)
) manually, they aren't be passive and they don't cost anything. This means at my conclusion, that quanta producing is a special feature, which can only stopped by freezing.
I have doubt, that this is a bug. But correct me please, if I'm wrong.