weird rule issue..

Hi, I have one small issue here that someone probably can shed some light on

I have a hccap in which the password I know is amanda0101.

I have the word amanda in a wordlist and I've created a small rule with $0$1$0$1 but for some reason it won't crack the password when testing. 

If I use combinator with the word amanda in one wordlist and 0101 in the other then it cracks it.. Trying to figure out what I'm doing wrong here.

Thanks