upgraded to 3.5.3 and am locked in a login circle ! I can see the next page for a second.
All Good now by uncommenting -.> $SessionTableName = “phplistsessions”; in config.php
@usr50 That’s only a work-around.
It has the side-effect of not being able to use the file browser in the campaign editor, see https://resources.phplist.com/plugin/ckeditor#you_don_t_have_permissions_to_browse_server
Thanks for the heads up.