I created a custom post "Streaming" that has a few WYSIWYG fields.
Contents, that was entered in these fields in visual mode, couldn't be published or updated. After saving, the content would just disappear. I had to re-entered the content and save it in text mode to make it work.
In short, I can only publish or update when the WYSWYG fields are on text mode.
We had a related issue, but it was fixed in Types 3.4.14, which you have installled.
I would suggest you clear the browser cache (I recommend reloading the page with the browser dev tools open on the network tab and the disable cache option set), and see if the problem still occurs.
Thank you for sharing the admin access, but, I keep getting blocked by the Wordfence plugin.
( Your access to this site has been temporarily limited by the site owner )
Can you please make sure that the username and the password are correct and there are GEO IP restrictions enabled? The username and the password that you shared earlier were the same, which doesn't seem right.
During testing on your website's clone, I noticed that I was not able to save the content in the first WYSIWYG field "Synopsis", in the visual tab. In other WYSIWYG fields, the content got saved correctly.
I turned on the "Editor" option in the "Streams" post type settings ( screenshot: hidden link ) and then cleared all involved caches. After that, I was able to save the content in the "Synopsis" field too, while using the visual tab.
Can you please follow the same steps on your website too and see if it works?
My issue is resolved now. Thank you so much for your help. I used [wpv-autop][/wpv-autop] to fix the html because I still wanted to use the Divi dynamic source.