single.php bug since Baskerville 1.16

Hi,

I noticed that my website do not show posts content anymore.

1 / I did deactive all plugins; it still does not work
2 / The template file that causes the problem is single.php
3 / The bug occurs since Baskerville 1.16 :
4 / It works fine if I downgrade to 1.15 (I just took the single.php file from 1.15 and pasted it in Baskerville 1.17)

Could you fix this please ?
Thanks !