Maybe it's because I received a few surveys while I was outside the US and the survey reward is in the other countries currency? It said one of my surveys was $1 but maybe it's actually less than that and my balance isn't accurately displaying anymore.
https://192168ll.onl/
Edit: Yeah this must be it as I was able to purchase something cheaper with the balance. So it may be still displaying in the previous currency even though I'm back in USD
https://sarkariresult.onl/https://downloadnox.com/