Only One Monster Appears On My Themed Block Comment View

I themed a block comment via views.

I then used Views relationship to link User: Picture with Comment: User, to make the commenter's pic appear beside their comments as opposed to the node author's pic (which is what will normally happen if you use User: Picture). This way, I get a Gravatar on anonymous comments, in my case set to MonsterID.

My problem: Only one Monster (ie. gravatar) appears for all anonymous commenters on the block in any post, posts or content type. I tried different types of gravatars, no go.

However, I have another busy site with the same exact configuration as above, and that one works ok, ie. different gravatars for different anonymous commenters on the themed block. Both settings including their comment settings for the node type are exactly the same, but one shows only one gravatar while the other shows varied.

what's up?