Did some more digging and found the problem! It worked great for mine!
Originally Posted by baddoor:
Finally found it out:
In settings => developer options, there's an option at the bottom to force applications to shut as soon as not actively used. you have to UNCLICK that option. and restart your machine. (you'd think that option wouldnt include the main launcher, but whatever).... Problem solved!
Whoa, that's active by default? Really? Doesn't that kind of kill multitasking as well?