Incursion can't re-use champions?

Cvlr

Hi,
In incursion should I be able to switch a champion to another that I've already used in that run?
I tried but what it happens is a loop, like this:
-switch x to y
-try to switch y back to x next zone
-game return me to the switch champions menu
And it happens until I change y to a champions that I didn't use in that incursion

Terra

You cannot reuse a champion after you've already swapped them out.

Cvlr

Ah lol I think I could since the game let me chose that champ