Hello
So happy I finally get that to properly work. I write this in here in case anybody needs help
About limitation of ten posts:
Went to wordpress Options > Reading and increase the number on the option to show syndication feeds. Keep the option for showing content and not excerpt (For some reason, this option doesn’t show the thumbnail picture)
About the “appeared first on” went to yoast plugin in Search Appearance > RSS and deleted the format – The post %%POSTLINK%% appeared first on %%BLOGLINK%%.
Definitively I needed to use ?1 in the feed to force override the cacche.
That will be my last question.
I will need that every time a new post (Mine is a CPT) is created shows on RSS, and also if an item is deleted to doesn’t show on RSS, so how to handle this cache aspects, meaning automatically and not manually?
Thanks for your support