Troubleshooting Signal Table Issues: Missing LinkedIn Posts and Mapping AI Scores to People Table

Hey everyone — hoping someone can help with two issues I'm running into with a signals setup. Context: I have a people table with 103 contacts (LinkedIn URLs populated). I've set up a signal table using the 'Find professional posts' source to monitor those contacts for LinkedIn posts, then score them with AI for topic relevance. Issue 1 — Posts not returning despite activity being visible When I run the signal table against my contacts, it returns no posts for 103 people. But when I manually click into specific contact profiles, I can see they've posted within the last 1-3 days — multiple times in the past week. So the posts clearly exist. Is there a known issue with the signal table not picking up recent posts? Could it be a LinkedIn URL format issue, a sync delay, or a configuration problem I'm missing? Issue 2 — Mapping scores back to the people table Once the signal table runs and scores each post for relevance (1-10), I want to write that score back to the matching contact row in my people table, matched on LinkedIn URL. I've tried using 'Lookup Single Row in Other Table' but I'm hitting a wall with using the LinkedIn URL as the identifier. What's the correct way to push a value from a signal table back to a people table? Any help appreciated — happy to share screenshots if useful.