Unable to view custom elements created under input rules

I've created custom elements based using the "Contents contain match" feature. Things like custom text, and custom dates for use in the output rules. The problem is only 3 of the elements are visible, while creating the output. I'm only able to click/drag those 3 visible custom elements when creating the output rule. I've tried the usual including restarting my mac mini, deleting/rewriting the custom elements that are no longer visible but I can't seem to fix it.
In this screenshot there are 5 custom elements, but only 3 are visible to choose from:

Any suggestions?
In this screenshot there are 5 custom elements, but only 3 are visible to choose from:

Any suggestions?