Does the boss bonus work on The Welter?

Question

A friend stated that it might not be working correctly, because the message after kill states that "following items are available at reward chest" but never mentions that it's from The Welter itself. Had killed boss 4 times and never managed to get boss bonus, and now I've wasted like 1kk to reassign slot after finding him, if someone knows anything please let me know, so I won't have to bother with wasting cash the next time.

Answer 1

Boss bonus only work on non-unique items.
This phrase is somewhat vague, and we are not sure about which items it does really affect when talking about rare from bosses.

We know, for sure, it doesn't work on Ferumbras' hat, for example, but we also know that it is a guaranteed drop, so it is easy to prove it does not double it.

As far as what I've been able to see from my boss hunting and boosting, it does not work for the rare itens on bosses. So you are most likely wasting money by boosting it. Regardless of that, I cannot be proven unless someone has a printscreen of 2x amulets from the Welter or 2x Glass of Goo from Shlorg. So far, I haven't, and all screenshots with double loots has been of two different items in the same boss, which is totally possible without boosting it.

Comments

While I appreciate that You took Your time to answer a question already forgotten by me, I had written a ticket to Cipsoft about that whole mess and got an official answer that bonus on Welter indeed isn't working at all. I know how bonuses work, so Your effort doesn't really answer this situation.
https://i.imgur.com/mOv0SUO.png
Don't ever try to waste a boss slot for Welter until it's fixed, and they are sure taking their time, I had found like 2-3 Welters since my question. And I do believe there is a possibility of getting unique drop off a bonus, but for it to work this boss needs to be fixed first.