Try to set the "Next page" setting to Auto, does that make it work ?
I know this is not the logical solution but for now this is how the next page action works
Max, ChronoForms developer
ChronoMyAdmin: Database administration within Joomla, no phpMyAdmin needed.
ChronoMails simplifies Joomla email: newsletters, logging, and custom templates.
ok, it does work for me here as expected, I get the bbb page displayed (3rd page) when I run this:

Max, ChronoForms developer
ChronoMyAdmin: Database administration within Joomla, no phpMyAdmin needed.
ChronoMails simplifies Joomla email: newsletters, logging, and custom templates.
i tested this on v8.0.27, the form goes from page 1 to page 2, if i click send it will show the message, but back does not work, you need to use a button link for that
Max, ChronoForms developer
ChronoMyAdmin: Database administration within Joomla, no phpMyAdmin needed.
ChronoMails simplifies Joomla email: newsletters, logging, and custom templates.
set a variable when you do the first next page, for example var:selected_page, then on page 4 you can have a button of type Link (not previous page link), and set the chronopage parameter in the url to the {var:selected_page}
Max, ChronoForms developer
ChronoMyAdmin: Database administration within Joomla, no phpMyAdmin needed.
ChronoMails simplifies Joomla email: newsletters, logging, and custom templates.
does the chronopage=page2 appear in the browser address bar after you click the button link ?
A direct link to skip a page will NOT work, in this case you have a direct link, you can only do this through the Next Page action in the submit event
How do you have the form setup ?
Max, ChronoForms developer
ChronoMyAdmin: Database administration within Joomla, no phpMyAdmin needed.
ChronoMails simplifies Joomla email: newsletters, logging, and custom templates.
ok, how did you set the "selected_page" parameter ? this is in the Data array, so to get its value you should use {data:selected_page}
please try that and let me know
Max, ChronoForms developer
ChronoMyAdmin: Database administration within Joomla, no phpMyAdmin needed.
ChronoMails simplifies Joomla email: newsletters, logging, and custom templates.
correct, but there is no space after the ":", it should be {data:field}
And, in v8 the variables are also set for the whole form session
Max, ChronoForms developer
ChronoMyAdmin: Database administration within Joomla, no phpMyAdmin needed.
ChronoMails simplifies Joomla email: newsletters, logging, and custom templates.
data array is for fields data, the var array is for the actions data
Max, ChronoForms developer
ChronoMyAdmin: Database administration within Joomla, no phpMyAdmin needed.
ChronoMails simplifies Joomla email: newsletters, logging, and custom templates.