Hi, which Joomla version and TZ Portfolio+ are you using now?
In this case, there is no need to import or export TZ Portfolio+ articles, you're supposed to back up your site carefully, then start updating Joomla 3 to Joomla 4.
hello I have the same problem but I have already imported everything including the site structure. In the database table tz_portfolio_plus_content there are all contents but they are not displayed on the site. The version of TZ Portfolio+ are in Joomla 4 TZ Portfolio+
2.6.6 and in Joomla 3 the same version. The problem is that in joomla 4 the articles are not displayed. The categories are all there.
A thousand thanks