Nano Ledger s shows BTC when sending BCH I find this weird..


I have the nano ledger S
I open the Bitcoin app on the Nano Ledger S (so not the "Bitcoin Cash" app)
I open the Ledger wallet Bitcoin program on my computer
the propram asks me what bitcoin chain I want to use, I choose "Bitcoin Cash"
the program asks me to select my wallet (Main / Split), I choose "Split"
I now see my BCH balance
I click on Send 
a popup appears which let's me select an adress and an amount of BCH to send
when I click Send, on the display of my Nano Ledger S I see "Amount 0.025 BTC"


Is this a bug in the nano ledger s?
Is my useage of Bitcoin cash without the "bitcoin cash" app wrong?

What am I sending.. BTC or BCH ???
I was having this problem too.  I realized where I was making an error, was when the google bitcoin app asks to open using the ledger, make sure you select the bitcoin cash icon on your ledger and not the bitcoin one.  That solved it for me.