I will say it appears P4 lights are now working...the A2Z light set always caused a render lock if I applied them without deleting the previous lights...it worked with 4 changes..the renders went fine. Aother problematic light set I have worked as well... There are also shadows now in FF draft mode...

Humankind has not woven the web of life. We are but one thread within it.
Whatever we do to the web, we do to ourselves. All things are bound together.
All things connect......Chief Seattle, 1854