Apps close too often

I find that apps close too often on the latest official update, Z10STL100-3/10.3.2.2252. Previously, I could have twitter, CB, Reddit in Motion, System Monitor, Browser, and other apps running. Now some of the apps close when using another app for some time. Does anyone have the same problem?

~.Posted using CB10 on my Z10 running 10.3.2.~

I never really have that many apps open at one time but i guess they would close depending on how much free memory you have to keep them running. I only have about 500MB of free memory at one time and i doubt i could keep that much open at once.