Despite updated app software, no mosaic option is available. Worse - nothing works. No automatic stacking, although it is set to do that. No time of exposure is shown in the upper right corner, either. Using an older iPad still having older app software shows the time of successful exposure but always stays at 0:00.
So now I have a virtual useless machine, all because I got excited over mosaic mode which never worked for me anyway. Please send help!