Bitmap font corrupted when string length is 7 letters

Hi, I create a bitmap font with Shoebox and try to use it in my game.
But, when string is 7 letters length, all text on screen is corrupted or missing. If not 7, anything works fine.

string length is 7:

string length is 9: (actually, anything not 7)

Font.
Font_B_001_T.zip (5.0 KB)

Defold version 1.2.172