I just did all 10 of Sagittarius' quests and didn't receive a single item, even though he's the special weekend quest right now. The same thing happened to me when Maleria was the special weekend quest. Is anyone else having this problem?

this isn't a problem, because they never give items. They don't give items when it isn't a weekend special quest. They don't give items when it is a weekend special quest.

They don't have special WSQ items either, like Cinthia does, even though she regularly only gives sP unless she's WSQ

Then why is the sP amount the same as weekly quest? Highest I got was 198k and this happens on any other day of the week.

Maybe it's just bad luck, but I've been getting over 200k almost every time this weekend, which is definitely more than the usual amount for me during the regular week.

Normally it's more like 100-150k or so.

Heck of a bad luck, 3 days in a row, usually was getting over 200k too on Saggi weekends...hm, maybe he's tired...or getting poor-er :D