Output and impedance options on nano cortex

Hi,
I’m building a pedalboard with the Nano Cortex, where I want to put two effects pedals after it: a Catalinbread Belle Epoch and a Strymon Flint. I’m having some problems because when I activate the Flint, the signal is louder even without any effect applied, and the Catalinbread seems to have an issue with the input signal, as it’s quieter. I imagine it has to do with the output impedance of the Nano Cortex. Does anyone have any ideas on how to fix this, and is it even possible?

Similarly, if I want to use the unit only for effects in front of an amplifier via the standard input, would I need to adjust the impedance as well?

Thanks

Is Flint V1 or V1. If V2 do you have it on mono input?
Nano has balanced outs ( I think +4db with TRS Cables )

I use mine with a TRS→XLR Female out converter.
Then you do not need a DI or isolator.

Is V2. I’m using with an trs-xlr adaptor direct to PA, but I would like to integrate the other pedals after in order to go to an amp input. Thank you

What cables are you using right now to connect from the NC to your other pedals? Have you tried normal TS cables? Or TRS (NC output) to TS (your other pedals input)?
If you are talking about just a volume difference, then I wouldn’t recommend changing the impedance. Changing it usually only makes sense if you notice a tonal difference.

I´m using ts cables, the flint increase the volume, but the belle epoch decreases the overall volume.

Thanks