Hello @Pittsburgh-SCORE ,
I took a look at your latest email, and I was able to successfully see and drag over the action blocks you mentioned. Are you experiencing any lag that might make it hard to drag over / line up these blocks? If so, does performing any connectivity troubleshooting, particularly clearing your cache or restarting your router, alleviate the issue at all?
I did also notice that your divider and spacer blocks are the same color as your inner / outer background, so that may be contributing to their lack of visibility when actually inserted into your email.