Index Lifecycle Policies - Create a new index every week

I'm trying to create indexes with the format: filebeat-7.4.0-yyyy-mm-dd every 7 days, but apparently doesn't work as expected. What I did was adjusting the Index Policy (that comes with the Cloud instance by default) in Kibana as it follows:

Hot phase: Active (enable rollover)
Maximum age: 7 days

However, after 7 days, I don't see any new indexes...
I'm missing something?