The font you're using makes it really hard to quickly identify letters — the T looks like a C, the J looks like an I (both of which could also be interpreted as an L), the X could be an N, the V could be a U, etc. Legibility is important when you're trying to unscramble a word.
There are also a few combinations that have multiple solutions — URBAN can also be UNBAR, but the game doesn't except the latter as an answer. I'm also not sure what the answer to this one is supposed to be? I think the letters are PTAKA