I wasn't even 100% sure what was going on with Rux lately but this explains a lot. Honestly it was better with a fixed time each week for all players, if it's based on when you log in, that's going to be a problem as people can't always login at the same time daily (I sure don't). I have to agree with your ideas here @YaBoiMattyK .
I have a acorn 3 item set in 1st spot, of which I already have 1 of the items. So i get a reduced price on the other 2 items. i dont want these so I wait it out the 6 days or however long it is.
Login the day its supposed to reset and it gets replaced with the same 3 item set for acorn. Stupid.
I bet theres gotta be other 3 items sets from rux but ive yet to see them.
