Does TeamViewer Host on Android log itself out if the device is turned off for a period of time?

We are supporting a number of Android tablets using TeamViewer and we are finding that if the devices are turned off for a period of time (it seems to be about 48hrs) then TeamViewer Host needs to be logged back in. Is this the expected behaviour? And if so, is there any way to prevent the logout from occurring?

We are using TeamViewer Host on the tablets and connecting to them from TeamViewer on Windows 10.