On S12, it is possible to do a long "hang-time" at the top of the jump but he can't really hang there, it's a matter of slowly passing thru that peak rather than stopping at it.
You want the light to have a pattern or other arbitrary shape to it?
You can paint the shape on a (typically) square bitmap in a paint program and drop it on a klieg light. I believe black is opaque and white is transparent and you can blur your shape in the paint program for fuzzy edges if you want them.
Note that the light will only use the circular area that can fit inside the square.
I'm not sure what I'm looking at in that screen shot.
AFAIK, a PRJ is a PRJ in any version.
PRJs can have things embedded in them or they can reference files that are not embedded and saved elsewhere.
I can't tell exactly but maybe you left some five-point areas when you deleted a spline. The other splines would still be there but not fill in.
If there's something there you don't want, you can still select it and delete it.
A new OS will be like a new computer. You'll need a new code.
I doubt they've blocked you. Try a brief message on their facebook page mentioning that you can't get an email message thru.
can no longer update? The v15j installer won't run?
That is curious... i presume you have eliminated a displacement possibility from any maps or materials. And both of those shots are the same frame.
Just to try... delete all materials and maps from that model and see what happens.