RSS feed 3.6.12 empty for public users?

Can you please advice?

We have a website with Jevents with agenda items with different access levels. Some items are public, other items are private for certain users. See https://www.jubalvarsseveld.nl/agenda.html

I have setup the RSS feed in Jevents and included the syndication module on Joomla.

The URL for the feed is: https://www.jubalvarsseveld.nl/index.php?option=com_jevents&task=modlatest.rss&format=feed&type=rss&Itemid=401&modid=341

If I open this URL in a private session, I basically get an empty RSS feed:

<?xml version="1.0" encoding="utf-8"?>

<!-- generator="Joomla! - Open Source Content Management" -->

<?xml-stylesheet href="/media/com_jevents/css/bootstrap.css" type="text/css"?>

<?xml-stylesheet href="/media/com_jevents/css/bootstrap-responsive.css" type="text/css"?>

<?xml-stylesheet href="/plugins/system/jce/css/content.css?7cbca743d386441a6b3904ce93ddb2c2" type="text/css"?>

<?xml-stylesheet href="https://www.jubalvarsseveld.nl/media/editors/arkeditor/css/squeezebox.css" type="text/css"?>

<rss version="2.0" xmlns:atom="http://www.w3.org/2005/Atom">

	<channel>

		<title>Jubal Varsseveld</title>

		<description><![CDATA[Chr. Muziekvereniging Jubal uit Varsseveld. Muziekvereniging met harmonieorkest, slagwerkgroep en opleidingsorkesten.]]></description>

		<link>https://www.jubalvarsseveld.nl</link>

		<lastBuildDate>Thu, 04 Feb 2021 20:51:44 +0100</lastBuildDate>

		<generator>Joomla! - Open Source Content Management</generator>

		<atom:link rel="self" type="application/rss+xml" href="https://www.jubalvarsseveld.nl/component/jevents/modlatest_rss/rss/341.feed?lang=nl-NL"/>

		<language>nl-nl</language>

	</channel>

</rss>

If I open the same URL as a logged in user, I get a full RSS feed with all my agenda items (including the private ones, which I, for obvious reasons, will not quote).

The contrast between having no items at all versus a full blown RSS feed does not seem to make sense. Why does Jevents not include the public agenda items in the public RSS feed?

We use JEvents v3.6.12 Stable on Joomla! 3.9.24

Thanks.