So I checked buglist didn't see this one there my setup as u see, generates 510 EU/t entering the MFSU.
I have another MFSU at the output ( for testing reasons) So as you see on picture nr 2 , there is 512 EU/t exiting.
Now the strange part is that ( in picture 3 and 4 ) that the EU of the 1st MFSU still increases. which shouldn't be possible right ?