Fixed!
So after trying for a long time I have finally fixed my problem. Of course I am still not 100% sure what actually fixed it.
So a little more back story. When I bought both echo dots they both showed up in my Alexa app before I had even received them. This seemed a little strange to me. But this time to be sure I had a clean setup, I told both dots to de-register before resetting them. Not sure if that is what made the difference or if it was my next step. I realized that my wifi broadcasts on both 5g and 2.4g. My echo plus is right beside the router and is set to 5g. not sure what I had the dots on before but I made sure that this time they were both on 5g. Again, I am not sure if that would make a difference seeing how its the same network, just different bands.
Regardless, I am not able to control all my smart lights and plugs using voice commands on both the dots and the echo plus.
Thank you everyone for your help!