I am facing the same situation as well. Here is my site – https://fitfab50.com
Most of my posts utilize buttons, but I have been able to overcome this issue by using the Custom HTML block and inserting standard button html, like this…
<center><button>Type anchor text here</button></center>
Thank you for your prompt response. Upon further review, the issue does not appear to be related to the plugin. My PHP memory limit was set at 32MB. I changed it to 256MB and all errors I encountered while editing and publishing disappeared.
