I'm running Joomla 3.7.3 with PHP 5.6.30 on local host.
On one form, where I port from CFv5, the Save button does not close the form, and then under the designer tab the section area is completely blank, except for the tools on the left side.
The save button produces the follow output below in error_log. You can see from the time stamp that it was one click of the save button.
If there is any other information I can provide to help debug this, let me know. I will try to attached the Form which I had backed up.
[11-Jul-2017 22:19:10 America/Los_Angeles] PHP Warning: Unknown: Input variables exceeded 1000. To increase the limit change max_input_vars in php.ini. in Unknown on line 0
[11-Jul-2017 22:19:12 America/Los_Angeles] PHP Notice: Undefined index: sections in /Applications/MAMP/www/gvp/administrator/components/com_chronoforms6/chronoforms/themes/default/views/connections/edit.php on line 217
[11-Jul-2017 22:19:12 America/Los_Angeles] PHP Warning: Invalid argument supplied for foreach() in /Applications/MAMP/www/gvp/administrator/components/com_chronoforms6/chronoforms/themes/default/views/connections/edit.php on line 217
[11-Jul-2017 22:19:12 America/Los_Angeles] PHP Notice: Undefined index: locales in /Applications/MAMP/www/gvp/administrator/components/com_chronoforms6/chronoforms/themes/default/views/connections/edit.php on line 237
[11-Jul-2017 22:19:12 America/Los_Angeles] PHP Warning: Invalid argument supplied for foreach() in /Applications/MAMP/www/gvp/administrator/components/com_chronoforms6/chronoforms/themes/default/views/connections/edit.php on line 237
[11-Jul-2017 22:19:12 America/Los_Angeles] PHP Notice: Undefined index: locales in /Applications/MAMP/www/gvp/administrator/components/com_chronoforms6/chronoforms/themes/default/views/connections/edit.php on line 251
[11-Jul-2017 22:19:12 America/Los_Angeles] PHP Warning: Invalid argument supplied for foreach() in /Applications/MAMP/www/gvp/administrator/components/com_chronoforms6/chronoforms/themes/default/views/connections/edit.php on line 251
[11-Jul-2017 22:24:14 America/Los_Angeles] PHP Notice: Undefined index: alias in /Applications/MAMP/www/gvp/administrator/components/com_chronoforms6/chronoforms/themes/default/views/connections/edit.php on line 23
The Backup button produced the following:
[11-Jul-2017 22:34:01 America/Los_Angeles] PHP Warning: preg_replace() expects at least 3 parameters, 2 given in /Applications/MAMP/www/gvp/administrator/components/com_chronoforms6/chronoforms/controllers/connections.php on line 187
[11-Jul-2017 22:34:01 America/Los_Angeles] PHP Warning: preg_replace() expects at least 3 parameters, 2 given in /Applications/MAMP/www/gvp/administrator/components/com_chronoforms6/chronoforms/controllers/connections.php on line 189