That's weird - and just the sort of thing the developers need reporting
Sorry you're having problems though and I can't help you fix them
The only advice I can give you regarding whether LumaFusion or Pinnacle is this:
Pinnacle is probably unlikely to be developed any further (not saying it's a bad app - I've still got a copy). In the format it is in I doubt that it can or will be pushed much more
LumaFusion is only on it's first release version and there is much, much more to come
I am not a developer, but I am a beta tester
With later versions of LumaFusion it is likely to cost more too as I believe it is (or was) on offer in the States
Now I'm not suggesting $20 is easy money and clearly the app won't do what you want - at the moment
Although this Christmas thing has got (gotten?) in the way the developers are starting to push Beta's out again already
So maybe stick around a bit longer?
And ... an iPad Pro ... I'm jealous!!
Just my £1 ($1.23)'s worth