Running more than 1 archicad instance?

[Arcadia]

Will it cause problems if I run a second instance of archicad and work on a model while the first instance is rendering an image? By problems I mean conflicts or crashes not whether my computer has the CPU & RAM to do so which I know it has. Anyone do this on a regular basis? Otherwise unless you have 2 systems you are stuck with running renders overnight or on weekends - some I am working on now take a couple of hours to render.

[Anonymous]

I usually run 2 instances at least once a day. And I have done renderings in lightworks simultaneously every now and then. I have done this with version 9 and 11 on a dual core and quad core. I imagine that it would not be a problem with version 12. Of all those times, I have not crashed once while performing renders on 2 instances at the same time without much loss of speed (enough to not notice a difference). I also remember one time (I was probably lucky that it did not crash), I ran 4 instances at the same time, all of which were rendering with lightworks, which actually doubled the amount of time to render on all 4 renderings.

I would say that it is possible without crashing based on my experience. My antialiasing is set to "better". I would also like to point out that every time I do this, I shutdown all other applications to avoid the possibility of crashing.