You don’t want to reference the current user in your text box, just the current cell’s data (the repeating group itself should reference the current user in it’s data source).
Also, it doesn’t look as though the ‘Equipment’ field on your user datatype is a list. That means each user can only one ‘Equipment’ entry linked to them, so there’s no need to use a repeating group to display that, you can just use a regular group.
I suspect you’re intending to allow a user to have multiple ‘Equipment’ entries on their record, in which case you’ll need to modify the user datatype and add a field for ‘Equipment’ that is set to be a list.
Then the steps outlined in my previous reply will work.