Disappearing Layers After Latest PS Touch Update

Question

After the latest PS Touch for Android update, the layers do not work properly anymore. Any effects applied to them, example - after reducing intensity to below 60% - the image disappears never to be brought back.
I have called numberous times on this and have been transfered to so many departments, then disconnected. This isn't very professional. Please allow people to get help for this product when needed.
I am using a Visio Tablet. This app worked perfectly prior to the recent updated (prior to the HDR filters, etc added).
Thank you

Answer 1

Sorry about the long delay as I had family and life to attend to.
Warunicorn, the FX was Basic>Lighting.
When using Lighting on layer 2 (after filling an empty layer with black) that when I move the circle cursor for the light (whatever it is called) even slightly the black fill disappears.
Here is the tutorial I followed: http://tv.adobe.com/watch/learn-photoshop-touch/using-lighting-effects/
Above is only one example as anty FX will do same.
Now what makes makes this app very frustrating and useless is that upon further inspection, any second layer with fx applied to it in which the fx intensity slider is adjusted, that layer's content (photo, etc) disappears and can not be retrieved with placing slider back to original positon,
In a nutshell I can not use this app as layers are not working correctly.
Please note I will NOT be adding snapshots as this app is simple enough to explain, nor do I have time.
Since I last posted:
Factory reset my device
Reformatted my sd card
Updated device to current settings
Redownloaded PS touch
Rebooted device
....and still having same issue.
This app worked perfectly prior to this last app update.