Voila. That fixed it. Turned of "image review" (first menu, 2nd item) and works just fine now. Interesting that it works with the S5 phone but not the tablet when this option is enbled. Thanks for your prompt help.

Running HR 3.4.7 on 4.4.2 (KitKat) Android on Galaxy Tab S 10.5. When stack shooting, auto focus works OK to find point "A". After moving to find point "B" and hitting "start shooting", focus returns to point "A" OK and calculated number of shots are taken. However, focus DOES NOT move forward ...

I'm having an extraordinary bad first use experience with HF. It has crashed on me 5 or 6 times and I've lost hours of work.
(1) Ran several batches on the same directory with different settings and methods, using the "Enqueue stacks" option. Directory contained 169 Canon CR2 files. Took about an ...