Score and urgency on sales insight is a mess.

I keep seeing on Salesforce, on the Sales Insight tab, under best bets, many leads tagged as "hot" -> urgency "high" even when the last activity was 4 or 3 months ago. It seems to be working fine for some other accounts, for other sales executives that have accounts with more activity, but still there's a bunch of accounts that don't seem to have urgency decay. I manually checked them and they dont have activity.

We recently run the campaign "decrease score by 10 for inactive leads" but I dont think this kind of campaign should trigger urgency. Am I doing something wrong or misssing something? Is there a way to reset urgency?

My relative scores and flames are set up as dynamic. Do you know if this may be the reason?