Default [Q] question about memory

Hi I bought this rca tablet from Walmart, and looked for information on rooting it, in which I found a whole lot of nothing for this model. Rct6272w23. I decided to try kingo, and it worked flawlessly. The reason I rooted to begin with was to be able move apps to my SD card. This tablet has a preinstalled app that let's you move internal memory to SD, but I have noticed that it will work until I reboot and then all the apps go back to internal memory. Anyone know why this is happening, or how to fix it? Thanks in advance