Help loading user preferences from DB

I’m trying to hide a button (on page load) when the user has “liked” each post in a repeating group.

Likes are stored as a list of PostID (numeric) in User data as a list.
Repeating Group Entries (each) have a PostID (numeric).

Here’s my current workflow action:

Current User’s Likes contains Reporting Group’s List of Posts :each Item’s PostID

It’s showing red, type mismatch empty rather than yes/no. I’m also seeing ‘Hide “bTHVD” is not an option.’

I’m logged in as a test user who has liked 5 or so of the 20 posts.

Any advice?