FGRP Mac sensitivity to inconclusives/invalids

Hi,

I remember a post somewhere about an 10% error/invalid rate on Mac for FGRP tasks and an adaptian made. Can't find it right now.

I've been testing over the last few months with several settings. For some reason it doesn't matter what i do but i get on average an inconclusive (most of the time turns out to be an invalid) every 3 to 4 days. I run 1 task per 8.5 to 9 hours (depending on running 1 or 2 at the same time)

On a single task with nothing else running i'm on baseline RPM for my fan (MBPro 17") so no heat issues. If i run it next to a GPU task or i run it as a double CPU task doesn't seem to matter.

Also excluded it from the virusscanner (both app and folder).

My latest inconclusives are workunit 181961169 and 181803570. The first was running next to a Gravitational Wave file combined with a GPU wu. The latter was a single FGRP next to a GPU task.

I can't figure it out. I tested before 8 threads of BRP4 CPU for some time and i never got an error. Also i crunched FGRP on a netbook (Windows 7). Even though it took 88 hours for 2 files (the max it can run) the files were fine. 100% CPU on all cores (dual)

Also looked at throtteling. I'm running below or way below the 5500 RPM and 90 degrees CPU temp depending on 1 or 2 tasks at the same time. So i expect no throtteling.

No harddrive activity, no other programs started. Just idle crunching and i still get this ratio.

Haven't tested the same using bootcamp running Windows yet.

Any idea what the reason can be?