All, I was hesitant to update in case something went wrong, again, but here is what I've found through my testing over the past month or so.
I was running the Legacy version with the Hubspot plugin and didn't have nay issues. I no longer use Hubspot so, after seeing other post about removing this I revert back to the NEW version and removed the Hubspot plugin. Since then I've had no issues....touch wood!!!
I believe that anyone using Hubspot should revert to the Legacy version, and anyone NOT using Hubspot should remove the plug in if they want to use the NEW version.
Only my opinion and what I've seen personally over the past few weeks.
However, the sentiment still remains as to why we need to do these types of testing and troubleshooting for such a large corporation is beyond me.
Hope this helps anyone struggling with this issue til Microsoft resolve it.