The reason why Beta 1 works better, but Beta 2 DAILY BUILD/Release Candidate has errors is that they are working on the code. When the code runs in a stable fashion and the list is complete, then it will become Beta 2. You are NOT using a stable version of Beta 2. It hasn’t been released yet. I also learned this the hard way. I only use Beta 1 for now.
This post explains it all: [https://forum.corona-renderer.com/ Version differences and their purpose ](https://forum.corona-renderer.com/ Version differences and their purpose )
Also, your system does not have enough RAM for high-end rendering and video work. Most PCs come with at least 16 GB of RAM. I have 32 GB and our iMac Pro has 124 GB. Even if you are able to run your apps, having them swapping out info to the HD can slow everything down significantly. Yes the SSD is much faster, but usually not as fast as good RAM.
Good luck.