[MR 15 test bugged.]

For the past 4 days now, I've been trying to just practice the MR 15 test and every time I tried, it told me I failed before I even loaded in. I figured maybe just jumping straight to qualifying would be different, but it does the same thing.

[Syndicates - Best 3-4 to support?]

Noob question!
Currently I'm doing Perrin Sequence and Loka and I'm up to Senior associate in Perrin.
I know nothing about the rewards, what are the better ones to support? What's more worth it in the long run nowadays?