Flow Header Option not retrieved from Project Template

I just created my first personal template, and found that the parameter “Show Flow Headings” - “For All Flows” is not retained when opening the template for the first time, so I have to manually configure it in Layout Options again.
Oddly, if I open the template file for a second time, the parameter works fine.
Could it be a bug? Some mistake on my part?
I checked my Defaults and the parameter is activated.

Are you perhaps going through the Hub and not ticking the “project uses multiple flows” box?

Yes! It did the trick.
Thanks a lot -

By the way, is there a way to access the hub when at least one project is open? It seems to me that the hub appears only when there is no project open …

Window > Hub.