Validation of the featured image in the Toolset Forms was triggering an error.
Solution:
The issue was that the PHP function 'getimagesize' expects the param to be an actual object and in the error log you shared this parameter is empty.
I deducted that this happened when you try to submit the form without the featured image, then getimagesize will try to check the size of null and error out.
I added a check to see if the field _featured_image is set before checking for the size and that fixed the issue.
Add this shortcode to the Toolset custom code section in Toolset -> Settings -> Custom Code. Then from there you need to add the shortcode name "has_content" to 3rd party shortcode arguments in Toolset->Settings->Frontend.
The issue here is that whenever the user is saving a content template that has divi builder assigned to it, the post assignment is lost.
Solution:
This was actually resolved in the latest version of our views plugins SO if you are experiencing this issue I would recommend updating to the latest available version of views.
We document known issues and their solutions in Toolset errata. Save time by checking there first and seeing if what you are facing is a known issue. This list is kept short. We do our best to resolve all known issues with every release of Toolset plugins.
Support Policy
Toolset staff will help you use the Toolset plugins correctly, provide any information you need, help troubleshoot problems and advice on best-practices.
Please make sure to issue only one topic per each support ticket.
