Hey Dean,
first of all, thank you for the purchase!
Please accept my apologies, this is my fault as I made a small mistake in the code which resulted in the theme option “body text line height” to lose the pixel suffix and therefore be seen as “em” height format. Please download this updated file from my repository, unzip it, and upload into the theme folder (/wp-content/themes/Kabuki/), replacing the existing file. Thank you for noticing this, I will definitely include the fix in the next theme update!
Best,
Andrew | Satori Studio