I'm having trouble with Conditionals since upgrading to Joomla 3.5.0. When I change a field that causes other fields to appear, they do not appear until I hit submit. When I hit submit it gives an error message that the field is required and displays the hidden field. For example, if I select "Student" in one of the drop down boxes, the "Student" tab is supposed to become enabled (as it did before the Joomla! upgrade). If I select Student and hit the submit button, I receive an error that the required fields on the Student tab are missing, then the tab becomes enabled. Similar behavior for fields withing the same tab.

I initially tried upgrading to CB 2.0.14 with the latest Conditional plugin, but I get the same behavior. I turned off the only non-CB produced plugin (AcyMailing), and 20 Joomla plugins at a time to see if one of those was causing the problem, but no change. One thing I did notice is that registrations and logins would not work under PHP 7 ("Session expired or cookies are not enabled in your browser..."), but I backed it down to PHP 5.6.19 which fixed that particular issue.

Any thoughts on what is causing this?

Thanks

I don't receive any fatal errors. I do receive some warnings about self closing tags in IE that don't show up in Chrome and Firefox, but that's about it. When I have the site in debug mode I receive this error when I enter the registration page:

Deprecated: preg_replace(): The /e modifier is deprecated, use preg_replace_callback instead in /home/pcmb6683/cbtest/administrator/components/com_comprofiler/library/phpinputfilter/phpinputfilter.inputfilter.php on line 328

When I hit submit (which fails due to required fields that did not present initially), I receive these errors:

Deprecated: preg_replace(): The /e modifier is deprecated, use preg_replace_callback instead in /home/pcmb6683/cbtest/administrator/components/com_comprofiler/library/phpinputfilter/phpinputfilter.inputfilter.php on line 328

Strict Standards: Only variables should be passed by reference in /home/pcmb6683/cbtest/components/com_comprofiler/plugin/user/plug_cbantispam/cbantispam.class.php on line 1623

Deprecated: preg_replace(): The /e modifier is deprecated, use preg_replace_callback instead in /home/pcmb6683/cbtest/administrator/components/com_comprofiler/library/phpinputfilter/phpinputfilter.inputfilter.php on line 328

Strict Standards: Only variables should be passed by reference in /home/pcmb6683/cbtest/components/com_comprofiler/plugin/user/plug_cbantispam/plugin.cbantispam.php on line 236

I did apply the Joomla 3.5.1 just in cast that might make a difference but there was no change.

I loaded up CB 2.0.14+build.2016.04.05.01.02.18.557995701, CB Conditional 4.0.7+2016.03.11.17.55.49.428f56ed2, and CB AntiSpam 2.0.0+build.2016.03.03.23.20.17.4513e85ed. I removed the AcyMailing plugin as well. No change, no errors in the console. The depreciation errors did go away, so there is some progress. Any suggestions on next steps?

Thanks