I would expect the output from
eups list sims_maf to include a line like this
2.3.5.sims+2 sims sims_2_3_5_1
If you are still getting the error you reported, I would just be interested to see what
eups list sims_maf produces, since the error you reported is consistent with not having MAF installed at all.
I am not sure how versioning information on
newinstall.sh is stored. I would not expect an out of date
newinstall.sh to produce the bug you reported (I am working with a
newinstall.sh that is at least a year old, and everything runs fine).