Be careful that you don’t accidentally buy the new weapons twice - no safety net
Be careful about buying the new weapons from Eleanor.
Even if you already bought it from the previous cycle and leveled it up to 40, it doesn’t tell you on the store screen that you’ve mastered it or already own it (unless you just bought it the same week)
I almost bought the Catabolyst twice and swore I already mastered it 2 weeks ago. Sure enough in my profile and inventory, I already had it.
So, just an fyi to double check if you don’t remember. It will let you buy it again without showing you already have it.
Hope this helps someone.