Crash on some kanjis

Hi BlueRaja, with new version my app crashing on some kanjis. Today I got crash on kanji of cloud ( kumo). I tried it on custom review to make sure about error before writing here and It still crashes. If I write wrong It crashes immediately; If I do correct, It crashes in the end and don't give me a chance to get pass it.

I passed it with selecting it as "knowing" and I could finish the review with this.  It's the only kanji in today's review. 

Could you check on this issue. I want to know if it's a problem on my end or not.  I think you'll able to see the crash If you try it the kanji. 

Kanji is; Meaning:Cloud - Reading:Kumo