I’m not so sure the sorting is as you describe and does appear to sort by the date received by the RSS feed.
For example:
RSS Feed: https://winnipeg.ctvnews.ca/rss/ctv-news-winnipeg-1.822382
Site (using Feedzy RSS): https://mytoba.ca
The order in the RSS feed is not by date but by promoted article (same scenario as festus17) and what I’m seeing rendered on the site is by date not by order in the feed.
From what I can tell from the SimplePie docs, sorting by date is enabled by default (https://simplepie.org/wiki/reference/simplepie/enable_order_by_date). There is a switch to disable, any ideas of how to implement that switch?