Problem with LFO matrix mapping

I can map an LFO to another LFO’s frequency but it doesn’t do anything. Is there reason for this or another way to go about doing it.

You might need to be a bit more specific about what you’re doing and what you’re trying to achieve… If I initialize Vital, apply LFO 1 to pitch and then LFO 2 to LFO 1’s frequency I can clearly hear one affecting the other. Maybe check this works for you, too: if it doesn’t, you might have a bug; if it DOES work, it might help to see how you can fix your issue.

I think the LFO you want to modulate has to have it’s frequency as ‘seconds’ and not ‘tempo’.

No, a modulation on an LFO with frequency as “tempo” will still be modulated, but only in increments that the tempo field allows for. Setting to “seconds” will give you a smooth modulation, though, if that’s what you’re after.