I want to reiterate that the problem mentioned is not theme related, as we reverted to the core WordPress theme, and still have the conflict. Also, we disabled all plugins, reenabling them one by one (took as hours), changing themes etc., the problem was isolated to the Woocommerce Product Feed Plugin.
Basically, as mentioned there, if you run the Woocommerce Product Feed Plugin and Types at the same time, if you try to create a new Type or Edit an old type, the “Saving Your Changes” from Types just keeps spinning and nothing every happens (see attached screenshot). When you then disable the Woocommerce Product Feed Plugin (no matter what other plugins or themes you are using), you can then create a new post type again and/or edit an old one with Types with no problem (the spinning “Saving your Changes” from types goes on for a few seconds, but then stops).
1. I can see that you are using older version of Toolset plugins (Types, Views etc). Please update ALL Toolset plugins to it latest official release. Or you can download it from your account: https://wp-types.com/account/downloads/
Sorry, but I sent you our report from the live site, where stuff is not updated because we didn't update the live site due to the problems mentioned. However, rest assured this has nothing to do with the version of the plugin. I don't have time to get the report from the staging website, but we updated the plugins to the correct version and the same problem occurs. We literally spent hours on this to isolate the specific plugin. To repeat: Every plugin was updated to the latest version and the problem still occurs. There is a conflict between Woocommerce Product Feed Plugin and Types, no matter what version you use, what theme etc. You cannot save Types when both these plugins are turned on.
I have asked our Support leader to make the post private. Please perform the debugging steps I have requested you in my previous response. After that please provide temporary website WP-admin and FTP info for your site.