Hello world !
After getting a switch Lite, I decided to turn my original Switch to an hacked one with emuNAND and sysNAND.
I'll be getting my jig next week, so I decided to test the local trade in Pokemon Sword.
Here's my stuff :
-One switch Lite.
-One non-patched Switch that will get emuNAND under Atmosphere with Edizon / Checkpoint for saves (actually only has a OFW sysNAND).
-One game bought on the Nintendo eShop and installed on both my console running the same account (Running different saves).

First problem : I can't seem to make a local trade with both my console (I can see my other device in the Y-communication menu asking for a trade, but I can't press the notification and I can't see my other device in the overworld).

But Second problem : I was planning to make my Legit pokemon from Lite to go in sysNAND's save to modify it in PKhex, but when I turn the plane-mode, I can't even access Y-comm menu anymore, I get an error asking me to turn-off plane-mode (that will be enabled once my switch will be under CFW).

So, regarding the first problem, is it because I'm using the same game on 2 devices that I can't seem to make the trade work ?

Regarding the second, I've seen people that were talking about offline trade to transfer their sysNAND pokemons to PKhexed emuNAND with 2 switches, but how is it possible if you can't trade with plane-mode enabled ? or am I getting an error because it's a game from the eshop ? (Official game, switch isn't banned under any way since I can play online without issue).

I heard about 90DNS and incognito, would that be the key to trade my future emuNAND with my Lite ?

And last question, can use a different nintendo account for my future emuNAND, install a different game (unofficial one) and make trades without risking my lite & sysNAND to get banned due to emuNAND's pokemon ?

Thanks you !