Sometimes you get them, sometimes not, depends whether the lag there currently is between the faucet sites and the coinpot site itself gives a timeout in between faucet claim and adding the tokens.
Same way, if you run the multiplier and check on the challenges page how many multiplier rolls you did, you will notice, roughly 20% of all rolls do add or subtract the tokens wagered, but aren't counted in the challenges.

This happens so frequently, I don't even care anymore.
Take the site as is and if that's not enough for you, the only thing you can do is leave.