This is probably not a bug but rather a feature, but I couldn't find it mentioned in the forum.
I was running a python script crunching origen output-files and noticed that numbers smaller than E-100 are printed without the "E" in the spectrum/intensity part of the output file.
Like this secuence (two time steps):
5.3493E-98 5.3816-104
Scale versions 6.2.3 and 6.3b8
Best regards, Peter Wolniewicz, SKB AB