On all of my Joomla 4 websites the "test ftp-connection" is not working. After entering all information I click on "test ftp-connection". The button is disabled, but there is not modal to report a succesfull (or unsuccesfull) connection.
Also there is no upload of the backup at the post-processing.
There is no error in the webserver log-file and also not in the Akkeba logfile as far as I can see.
The host / username / passwords are correct. They work in case of all of my Joomla 3 websites.