Cannot move in custom bullet 1/2+0

I started two custom games, once 1/2+1 and once 1/2+0. After my second move and opponents move, on my move I cannot move anymore. Sorry for saying move so many times.
I believe it has to be something with custom mode, as I’ve played 100s of “normal” bullets with no such issue happening.
Cheers

btw it was on an iPhone 6s, latest iOS etc etc

ok, I'm so stupid :D I actually created antichess games, I didn't notice that :D
Have a nice day all :)

:) it ok

Being stupid is not a fault..
Btw Antichess was solved.. play some other variant :)