On Joomla 4x AcyMailing Enterprise 9.0.2
When a modification is made to a template or an email and the notice appears that it has been modified, if the option to save the changes is chosen, the screen freezes and the only thing that can be done is save and close.
Also, using Chrome, the dialog box to insert a link in the text appears cut off and so narrow that it is not possible to insert anything.