Version 0.8.4. when inspecting the effect of standings in code because it wasn't very clear to me in the wiki i came upon this piece of code:
/* seal of virtue */ <<if $faction.christian.standing gte 30 and $faction.standing lte 59>><<set _monaroll1*=0.75>><<set _monaroll3*=0.75>><</if>>
As "$faction.standing" is undefined i assume you meant to use "$faction.christian.standing" again. As it stands this bug should cause the "Seal of Virtue" monastery effect to be inactive regardless of standing.
Edit: I wish this forum didn't make it so hard to post code with < and >