Weird. I was just doing something similar last night with Japanese nonsense to English. I just typed in some random characters, and then copy and paste them repeatedly. You would think it would keep repeating the same translation, which it sometimes does to a point, but then it will spit out something comprehensible

Try these:
ぶえのぶえのぶえのぶえのぶえの

ぬがぬがぬがぬがぬがぬがぬがぬがぬがぬがぬがぬがぬがぬがぬがぬがぬがぬがぬがぬがぬがぬがぬが

ざすぞざすぞざすぞざすぞざすぞざすぞざすぞざすぞざすぞ

ざすぞざすぞざすぞざすぞざすぞざすぞざすぞざすぞざすぞざすぞざすぞざすぞざすぞざすぞざすぞざすぞざすぞざすぞ

ざずぞざずぞざずぞざずぞざずぞざずぞざずぞ

ざずぞざずぞざずぞざずぞざずぞざずぞざずぞざずぞざずぞざずぞざずぞざずぞざずぞざずぞ

わつあっぷわつあっぷわつあっぷ