Taylor Robertson
Ansys Employee

Hello Nir,

I have run out memory before, but it has always been well above 1GB? It may be that you need to run this on a computer with more RAM, or update your FDTD version. I can't recreate the issue on my end, with 64 GB Ram on 2023R1. That is not even a particularly large index monitor array which is strange.

When you say previewing, are you open this with the visulaizer? Or when you use getresult("index")? Do you have a number of other datasets in the workspace?