ah....just delete the offending file and octane will create another one that now works....!!

i have the exact same problem ...it's says that the file cannot be accessed but i can even edit it in file manager ...

so what did you do to fix this...?

I have priced up an i7 770k with 4x 1080 ti 11gb ....not liquid cooled ..hope that won't be an issue.

Want to do animation of exterior and interiors ...could be very large ...interior of malls seems to be worst case.

I can see that using direct light might be the only option

Is it possible to do ...

Just saw some YouTube video discussing vray rt ....an extra twenty percent was mooted on sharing cpu with gpu ...not very scientific but worth mentioning.